Implementation of Sus2 & Sus4 Chords       

    Utilizing Sus2 and Sus4 Chords within AutoTheory is very easy.  After selecting a chord from the Chord Generator, go to the Chord Editor and deactivate the “3” step of the chord.  You can then go to either the “9(2)” or “11(4)” step, and select one.  If you are not using inversions for the Global Chord Types, you will also want to lower the added 2 or 4 tone an octave in the chord editor so that it fits with the other tones.

    Example of a Sus2 chord:

    Example of a Sus4 chord:

    Now that we know how to program a Sus2/4 chord, it is important to understand the context in which they are best used.  Most commonly Sus2/4 chords lead into the normal triad or seventh of the same chord position.  So if I was to play a Sus4 i chord, I would probably follow that up with a normal i chord triad.  The black keys of the Chord Generator are very helpful in this instance, as they allow for secondary chords to be assigned.  It is important to note that Sus4 chords are more commonly used than Sus2 chords.


    Infinity Arp

    New to AutoTheory Pro is our unparalleled Arpeggiator mapping.  This patented function allows users to freely choose the starting tone and arp direction in real time from the Melody Lock, resulting in a limitless amount of arp combinations. 

    How it works: With the selection of a chord from the chord generator, the Melody Lock will shift the seven scale tones, placing the chord tones in the 1, 3, 5 and 7 positions.  When you select the chord tone positions, the arpeggiation will move upwards, starting at the chord tone that you selected.  When you select the tones in between (2, 4, 6 and 7b), the arpeggiation will start on the preceding chord tone and move in a downwards position.

    Or to put it simply:  Push different Melody Lock keys.  Each key selection will be a different way of arpeggiating the same chord.


    Chord Progressions that Work

    Understanding why certain chords transition well to others is relatively simple when you break it down mathematically.  The key concept to understand is contrast.  When two chords sound similar to each other, they do not create much contrast and probably won’t deliver a quality transition.  Nowhere is this truth more clearly illustrated than in the most commonly used chord grouping there is; I, IV & V.  In almost all instances these chords will provide quality contrast and transitions with each other.  But why is that?  When you analyze the data, it is right in front of your eyes.  The I(i) chord shares only 1 out of 3 tones (2 out 4 with sevenths) with both the IV(iv) and V(v) chords, while the IV(iv) and V(v) chords share no tones (1 with sevenths) with each other.  When we look at the transitions between I and either IV or V, you notice that they always sound good.  The transition between IV and V works as well, but maybe not quite as good.  So if we were going to make a generalization, we could say that the most desirable chord changes involve chords that share 1 tone (2 with sevenths) while those sharing no tones (1 with sevenths) also provide a solid option.  When you transition between chords that share 2 tones (3 with sevenths), the contrast is not as good (especially with inversions).   That’s not to say that using a progression between chords sharing 2 tones never works, but the odds are against you.

    Chords sharing 1 tone (2 with sevenths) – Ideal contrast
    Most common: I & IV,  I & V,  II & V,  II & VI
    Less common: III & VI,  III & VII,  IV & VII

    Chords sharing no tones (1 with sevenths) – Good contrast
    Most common: I & II,  IV & V
    Less common: I & VII,  II & III,  III & IV,  V & VI,  VI & VII

    Chords sharing 2 tones (3 with sevenths) – Less desirable
    I & III,  II & IV,  III & V,  IV & VI,  V & VII,  VI & I,  VII & II


    Global Chord Types and the Chord Editor

    Located at the top of the AutoTheory GUI in between the Scale and Mapping, is the Global Chord Types parameter.  This important control defines what type of chords will be output by the Chord Generator.  It sets the values for the step octave parameters within the Chord Editor.  While more experienced players will probably dive into the Chord Editor “step” functions, many users will be fine with just setting the Global Chord Types parameter. 

    The available options found within the Global Chord Types parameter provide users with different ways of grouping and organizing chords.  In many situations musicians make use of inversions or voicings to play chords in creative and unique manners.  Inversions and voicings are what we call it when we move certain tones found within a chord to the same note on a different octave.  This changes the pitch of the chord, but does not affect the overall character of the chord.  This is very helpful to understand and apply when you are also mixing, and need to have an idea about where different instruments fit into the mix frequency wise.  With that being said, let’s take a look at some of the different options available to you within the Global Chord Types parameter.


    Here is what each chord looks like when you use the GCT value of Sevenths with a Dorian Scale (i-ii-III-IV-v-vi*-VII).  You can see that the root tone along with all other tones gets higher in pitch with each chord.  If you are looking for a shift in pitch with each chord selection, this might be a good way for you to go.

    Sevenths (inv):

    Here is what each chord looks like when you use the GCT value of Seventh (inv) with the same Dorian Scale and chord ordering.  You will see that the i chord has all of its tones in the same location.  With the ii and III chords however, the last tone has been moved down in front of the root tone.  With the IV and v chords, the last two tones have been moved down in front of the root tone.  With vi* and VII, the last three tones have been moved down in front of the root tone.  These inversions serve the purpose of keeping every tone of every chord within an octave.  Although the pitch of the inverted chords has changed, the overall character of each chord remains the same.

    Seventh (voiced 1.5):

    Here is what each chord looks like when you use the GCT value of Seventh (voiced 1.5) with the same Dorian Scale and Chord ordering.  You will see that most of the chords are spread out over a one and a half octave range.  This provides each chord tone with a little bit more room to breathe.  When using seventh chords, this is often effective as there is an added tone that can make things a little more cluttered.  The octave adjustments performed to achieve these voicings are not quite as straight forward as traditional inversions.

    Sevenths (voiced 2):

    Here is what each chord looks like when you use the GCT value of Seventh (voiced 2) with the same Dorian Scale and Chord ordering.  You will see that all of the chords are spread out over a two octave range.  This provides each chord tone with a lot of room to breathe.  As with the (voiced 1.5) value, the octave adjustments performed to achieve these voicings are not quite as straight forward as traditional inversions.

    When you look at the outcomes of the Global Chord Types parameter, you can see that you are provided with different ways of approaching the frequency spectrum in the mix.

    Do you want a chord progression that changes in frequency?  Then you probably should not use any inversions or voicings.

    Do you want a chord progression that fits snugly into a one octave range?  Then you probably should use inversions.

    Do you want a chord progression that maintains frequency and spreads out over multiple octaves?  Then you probably should use one of the options for voicings.

    With each option, there are potential conflicts that could arise as well.  If you are using voicings that go into the frequency range (octave) of another instrument, it could potentially create problems in the mix where neither instrument is clearly defined.  If you are trying to fit harmonically rich seventh chords into a lower one octave range however, that too could also give you some extra work in the mix.  Consequently it is very important to have an overall awareness about what instruments you are using, and which octave (frequency range) they are occurring on.

    The examples provided in this tutorial relate to seventh chords, but the principals are the exact same for triads and fifths.


    Workflow Efficiency and Diversity

    When you first start using AutoTheory, your inclination will probably be to overuse it.  You might be changing chords multiple times within a bar, and you likely will be pushing the Melody Lock capabilities to the max.  Once you get beyond that phase, you will realize that the music you are trying to make probably doesn’t require the level of musicality that you are now capable of.  You can then focus on being much more efficient and diverse with your workflow, while always creating chords and melodies that work well.  That’s not to say that you can’t make some really quality stuff that utilizes highly musical concepts, because you definitely can.  In many cases with today’s popular music genres (hip hop / pop / edm) however, the rhythm (drums & bass) is the element that is front and center with a melody and chord progression working around it.  AutoTheory empowers you to make sure that you are always getting the chord progression and melody right, and that you are doing this in as diverse of a manner as you choose.

    Key – The key that you choose is a foundational element of your track.  It serves as an anchor and establishes the “home” position of what you are doing harmonically.  Due to the unique layout of a keyboard, it is extremely hard for musicians to become equally proficient from every key.  Consequently, many people gravitate towards certain keys because of easier hand placement positions.  With AutoTheory, hand placement is the same easy alignment for every key.  This allows you to play from every key with ease, and presents you with the ability to be more diverse than people who have been playing for years.

    Scale – The Scale that you choose is also a very important element to your track.  It will determine the types of chords that are most effectively used, and will also determine the spacing for melody tones.  As with playing from multiple keys, it is extremely hard for people to learn how to play multiple scales in a traditional manner.  This requires even more diverse hand alignments that change dependent upon the key that you are in.  Very few people are able to effectively play multiple scales out of multiple keys.  As with the key selection, AutoTheory allows you to keep your hand in the same position with all available scales.  Dependent upon the style of music you are making, you will want to choose an appropriate scale.  The most defining factor of each scale is the chord that is in the I(i) position.  If it is a minor chord (i), then the scale will have more of a darker feel to it.  If it is a major chord (I), then it will have more of a bright and happy feel to it.  If you are into a darker feel, you should experiment with the Dorian, Phrygian and Minor Scales.  If you are into more of a happy feel, you should experiment with the Major, Lydian and Mixolydian scales.  It is probably in your best interest to experiment with different scales until you find the ones that work best for you.  There is a lot that can be done out of one scale.

    Instrumentation and Octaves – The Device Output section of AutoTheory operates as a great way of organizing your track.  It does this by keeping you aware of which octaves different instruments are playing at.  When you have different instruments playing at the same octave, they become harder to mix together as they are hitting on the same frequencies.  Consequently it might be a good idea to have somewhat of a plan going in, instead of just loading up presets without having any idea about what role (chords or melodies) they will play and where they will be located (octave).  Almost all music is defined by the elements of rhythm, harmony and melody.  Regardless of your creative process or where you start your track from, the end destination remains the same for pretty much everyone.  AutoTheory’s device output routing matrix allows you to design a winning formula every time with ease.  A common output layout might look like this:

    Bass Instrument – Melody Lock output (octave 1 or 2)

    Low Chords – Chord Generator output (octave 2 or 3)

    Higher Melody – Melody Lock output (octave 3 or 4)

    Higher Chords – Chord Generator output (octave 4 or 5)

    Without trying to be Beethoven, anyone can get a lot out of AutoTheory by consciously playing from multiple keys and scales while properly organizing your instrumentation across the frequency spectrum.  When your music is compositionally sound, you will be amazed at how easy it is to mix as well.


    Mixing Instruments that are Played in the same Octave/Frequency Range

    If you are looking to make a track that contains a lot of instrumentation, it can become very difficult to fit everything in.  When you start to look at things critically, you realize that in many situations (dependent upon which key you are in) you are really looking at two octaves (3-4) of tones to work within before things get kind of messy.  Once you get into the fifth octave, tones sometimes become kind of harsh.  You can deal with some of this problem by using a low pass filter, but then you aren’t left with many harmonics beyond the fundamental tone.  This lack of harmonic content is very problematic if you are wanting to use any type of modulation.  Going below the third octave is great for bass tones, but pairing multiple instruments in that octave would probably not be a great idea.  So if you are looking to fit more than two tonal instruments (bass excluded) into the mix, you are probably going to have to put two of them in the same octave.  This can be pretty tricky if you don’t approach the situation in the right manner.  When two instruments take up the same frequency range, you really need to make sure that they stand out from each other.  For starters you probably want to put the two instruments into the higher octave (4), as higher tones equal shorter and faster waves, which create more space.  Once you have that figured out, you can look at these four elements to provide distinction between your tracks:

    Pattern – It’s probably a good idea to make sure that each sequence of chords or melodies that you are playing occur at different rates.  If you have a complex melody that touches on six or seven tones, you are probably best served to use fewer and longer chord/melody tones with the other instrument.  If both instruments are playing elaborate patterns, they are going to confuse the listener.  If both instruments are playing simple patterns, the listener will get bored.  Ideally the listener is hooked by the more elaborate pattern, while the other pattern plays a supportive role.  Another way of dealing with this is to have one pattern start out complex, while ending in a simpler manner.  You can then have the other instrument start out simple, while ending in a complex manner. 

    Pan – When using different instruments within the same octave, you probably want to pan each instrument out in different directions.  This will separate them from each other, providing each with its own place in the mix.  It is also nice for providing a more stereo feel to your overall track.  When doing this you probably don’t want to pan each instrument too far, as the mix will become lopsided if you leave out one of the two instruments at any given time.  I try to find locations between 2-3 o’clock and 9-10 o’clock for this.  When you are building up to the chorus, you might want to leave certain parts out of the mix at different times before having everything going for the chorus.  Finding a balance where each instrument is separated but not isolated is important.

    Reverb – The depth of each instrument within an octave is also something that provides a high level of distinction between the two.  Having one up in your face while the other is more in the background will help define each as separate entities.  When doing this you might want to use the same reverb settings for both instruments, while adjusting only the dry/wet parameter.  This way the instruments will feel like they are in the same environment.

    EQ – Ensuring that there is differentiation between the harmonics of each instrument is very important.  With synthesizers, it is relatively ease to dictate the harmonic patterns of instruments.  With natural instruments however, you are pretty much stuck with what you get.  Something I have found success with, is focusing on one of the instruments second level harmonics while focusing on the other instruments upper level harmonics.  For the instrument that I want to focus on the second level harmonics, I will use a low pass filter to take out the higher frequencies.  For the instrument that I want to focus on the upper level frequencies, I will use an EQ notch to reduce the frequency range associated with the second level harmonics.  Instead of boosting, you can cut the areas of the other instrument out.  Although there is no way to get around the fact that both instruments fundamental tones will be dueling on a certain level, there is a lot that you can do to the following harmonics of each instrument to really differentiate the two instruments.  When you are using synthesizers, these principals are a lot easier to implement than when you are using natural instruments.  One way to deal with this is to use one natural instrument, and one synthesizer.  You can then adjust the synthesizer’s harmonics in a complimentary role around the natural instrument.

    Envelope – The envelope of each tone will also have a very drastic impact on differentiating the two instruments.  You might be best served to make use of one instrument with a fast attack, and another with a slower attack.  If one of your instruments sustains, then you are probably best served to have the other instrument decay.  The idea is to provide each instrument with its own pattern of dynamics.  When the envelopes are similar, it will be very difficult to tell the two instruments apart during parts where they each play a tone/chord.  These same concepts for differentiating envelopes can also be applied to modulation principles with LFO’s.

    The common theme with all of these parameters is CONTRAST.  When using two instruments within the same octave/frequency range, you really need to go out of your way to make sure that they complement each other.  I have found that adding a third instrument on top of the drums and bass adds a whole new dimension to your track.  When I listen to the Chronic and 2001, most of Dre’s beats involve a third tonal instrument beyond the drums and bass.  Learning to program synths is a very valuable skill, even if you are only doing it to compliment natural instruments.  Synthesizers are very flexible when you know how to use them.  Often times certain natural instruments just don’t work that great together, no matter how you mix them.  Using synthesizers in a complimentary manner solves this problem.


    The Importance of Scales

    More than any other element, the scale that you choose provides the greatest impact on the mood and feel of your track.  The scale defines the spacing that will occur between the seven scale tones that you will be using.  This spacing has a profound influence on how chords will be defined, as well as the path that the melody will take.

    Major Scale: the major scale places major chords in the I, IV and V positions.  This is going to provide a simple, happy and positive vibe as the primary chords are major.  If you are looking to create an upbeat, pop style of song, the Major Scale might be a good bet.

    Minor Scale: the minor scale places minor chords in the i, iv and v positions.  This is going to provide a heavy, emotional and more complex vibe as the primary chords are minor.  If you are looking to make an intricate hip hop or EDM style of beat, this could work out well.

    Beyond the Major and Minor scales, lie a wide range of scales that blend major and minor chords in the ever important I, II, IV and V positions.  The Dorian scale places minor chords in the i and v postions with a major chord in the IV position.  The Mixolydian scale places major chords in the I and IV positions with minor chords in the ii and v positions.  They are just two of the many scales that break from a “major or minor chord only” approach.  One of the great things that AutoTheory empowers users to do, is easily work from a wide range of scales.  This allows producers to be very innovative with the directions in which they take their sound.

    In conjunction with the impact that scales have on what chords are being used, scales also have a huge impact on how melody tones connect with one another.  The spacing between the melody tones is the same as the spacing that occurs within the chords, so the implied mood and feel of the chords will be strongly present within the melody.

    Working from different scales is a sure fire way of adding diversity to your work.  Once you are able to get a grasp on the vibe of different scales, you can easily select a scale that is appropriate for the mood that you are trying to convey with your track.  



    The Importance of Chord Tones in your Melody

    Harmony (Chords) and Melody represent two of the three primary elements of music.  Often times songs will include a melody (series of individual tones) being played over a chord (multiple tones played at the same time).  This is often accomplished with one instrument playing chords, and another playing a melody in a different octave.  It could also be accomplished with the use of a single piano/keyboard however.  Getting the melody to match with the chord progression is not the easiest thing in the world to do for a beginner (at least it wasn’t before AutoTheory).  This often relates to a lack of awareness towards chord tones.  Chord Tones are simply the tones that are being utilized within the chord that is currently being played.  When you are creating a melody, you should understand that chord tones will always sound good with the chord that is currently being played.  It is a good idea to utilize chord tones as the primary elements of a melody.  They should occur on the strong beats, and should occur during longer and sustained notes.  When your melody gets away from using chord tones as the focus, the lack of cohesion will be very apparent.  When using chord tones however, you should understand that they are spread out from one another.  Transitioning from one chord tone to another involves “leap” movement which does have some limitations.  Sometimes you want to use “step” movement to an adjacent tone for a more fluid transition.  This requires the use of non-chord tones.  Non chord tones provide tension as they are not harmonious with the chord currently being played.  They can be very effective when they are used in a supportive context.  You do not really want them to occur during strong beats or for long sustained notes.  You want to use them as a fluid transition into chord tones.

    The dynamic functions within AutoTheory’s Melody Lock make it very easy for users to make use of Chord Tones, as chord tones are remapped to fixed positions with the selection of each new chord.  The Chord Tones mapping is great when you want to make use of only Chord Tones.  It works in a similar manner to an arpeggiation device, but provides you with the freedom to openly improvise any pattern you want.  The Dynamic Scale mapping is great when you want to make use of non-chord tones to provide step movement to your melody.  These patented functions are not available in any other software.  They provide the inexperienced user with the power to generate high level music with ease.