1️⃣ What Are MIDI Transformations? 🎹

A MIDI note contains several editable properties. Producer Pal can target one note, a group of notes, a time range, an entire clip, or potentially multiple clips simultaneously.

The transformation system behaves almost like a miniature programming language for MIDI. Instead of rewriting every note, the AI can describe a target, time range, property and mathematical transformation.

TARGET: Snare notes
RANGE: Bar 4
PROPERTY: Velocity
TRANSFORMATION: Ramp 1 → 127

2️⃣ Adding a Snare Roll Crescendo 📈🥁

“Apply a crescendo to the snare roll in the last bar. Go from minimum volume to maximum.”

Producer Pal identifies the snare pitch and the notes inside the requested time range, then ramps the velocity upward.

Velocity

127                         ●
                         ●
                      ●
                   ●
                ●
             ●
          ●
       ●
    ●
1 ●
  └────────────────────────────→ Time

You can reverse the idea as well:

“Create a decrescendo from velocity 127 down to 20.”

This technique is excellent for snare rolls, percussion fills, piano parts and any MIDI phrase that needs dynamic movement.

3️⃣ Applying LFO Shapes to Velocity 🌊🎩

“Apply an LFO to the hats' velocity.”

Instead of identical velocities across every hi-hat, Producer Pal can create a repeating mathematical shape.

Before:
100 100 100 100 100 100 100 100

After:
60 80 110 90 65 50 70 100

Supported concepts can include sine, cosine, saw and other periodic waveforms.

Change the Shape to Saw 📈

“Make that a saw shape instead.”

High      /|      /|      /|
         / |     / |     / |
        /  |    /  |    /  |
Low ___/   |___/   |___/   |___

Period and Frequency ⏱️

You can control how quickly the modulation repeats. A period of one bar completes one full modulation cycle per bar.

Layer Two Saw Waves 🧬

“Layer two saws at different frequencies. Use unusual periods like 2.7 beats and 4.9 beats so they do not align with the bar.”

Saw A: period 2.7 beats
+
Saw B: period 4.9 beats
=
Complex evolving velocity modulation

Phase Control 🔄

Phase determines where the modulation starts. Shifting the phase changes which notes receive the strongest accents, so it can dramatically alter the groove.

4️⃣ Applying Swing and Timing Transformations 🕺⏱️

“Apply swing to the hats.”

Swing is essentially a start-time transformation. Selected offbeat notes are moved slightly later than the strict grid.

Straight:
1 & 2 & 3 & 4 &
  H   H   H   H

Swung:
1  & 2  & 3  & 4  &
   H    H    H    H

Increase the Swing

“Make the swing a bit heavier.”

Producer Pal increases the timing offset. Moderate swing creates groove; excessive swing can become exaggerated, so always listen after transforming.

Transform Note Duration 📏

The same system can potentially modify note length:

“Make all the hats 50% shorter.”

“Make every fourth bass note twice as long.”

Duration transformations are useful for staccato melodies, legato sequences, short percussion and rhythmic basslines.

5️⃣ Pitch Cycling Across Drum Sounds 🥁🎼

On a Drum Rack, different MIDI pitches trigger different pads. That means changing pitch can effectively swap samples.

“Cycle all the closed hats through closed hat, pedal hat and shaker.”

Note 1 → Closed Hat
Note 2 → Pedal Hat
Note 3 → Shaker
Note 4 → Closed Hat
Note 5 → Pedal Hat
Note 6 → Shaker

This creates an arpeggiator-like sequence across Drum Rack pads.

Random Drum Sound Selection 🎲

“Instead of always playing the shaker, randomly choose between shaker, ride, crash one and crash two.”

Possible result:

Note 1 → Shaker
Note 2 → Crash 1
Note 3 → Ride
Note 4 → Shaker
Note 5 → Crash 2

Sequences create controlled repetition. Random selection creates unpredictable variation.

6️⃣ MIDI Probability 🎲

Probability determines whether a note plays on a given pass.

100% = always plays
50%  = plays roughly half the time
25%  = plays occasionally

“Set the ghost snare notes to 40% probability.”

“Randomise hi-hat probability between 70% and 100%.”

Combine Probability and Velocity

Main Hats:
Probability = 100%
Velocity = 80–110

Ghost Percussion:
Probability = 40%
Velocity = 30–60

This creates a stable core groove with quieter, evolving details around it. 🥁🧬

7️⃣ Scale-Aware Pitch Transformations 🎹🎼

For melodic MIDI, Producer Pal can use the scale configured in Ableton Live. Instead of moving notes chromatically by semitones, it can shift them by scale degrees.

Transform an Eight-Bar Melody 🎹

“In bars three and four, shift everything up one scale step. In bars five and six, shift everything up three scale steps. In bars seven and eight, shift everything up four scale steps.”

Bars 1–2: Original melody
Bars 3–4: +1 scale step
Bars 5–6: +3 scale steps
Bars 7–8: +4 scale steps

Adapting Melodies to Chord Progressions 🎹

A related workflow is to use a chord track as harmonic context and ask Producer Pal to adjust a repeated melody so it better fits different chord progressions.

CHORD TRACK
Am | F | C | G
      ↓
Analyse harmony
      ↓
MELODY TRACK
Adjust notes to fit

8️⃣ Transforming Multiple Clips at Once 🧱

The transformation engine can potentially target multiple MIDI clips instead of only one.

“Apply swing to all hi-hat clips.”

“Reduce velocity across every percussion clip.”

“Shift all bass clips up one scale step.”

This can remove a huge amount of repetitive manual editing across larger arrangements.

Example Drum Humanisation Workflow 🥁🔥

1. Apply a gentle cosine LFO to closed-hat velocity.
2. Add small random velocity variation.
3. Apply moderate swing.
4. Randomly move selected hats to shaker or open-hat pads.
5. Set alternate percussion to reduced probability.

The result combines dynamic, timing, timbral and probability variation without manually editing hundreds of notes.

9️⃣ Limited Audio Clip Transformations 🎧

Although the demo focuses on MIDI, Producer Pal's transformation system can also work with audio clips in a more limited way.

Randomise Hi-Hat Audio Pitch 🎧🎲

“Randomly shift the pitch of every hi-hat audio clip slightly.”

Clip 1:  0 semitones
Clip 2: +0.3 semitones
Clip 3: -0.2 semitones
Clip 4: +0.5 semitones

Randomise Audio Clip Gain

“Randomise each shaker clip gain between -2 dB and +1 dB.”

This can help repeated audio samples feel less static.

🔟 Producer Pal as a MIDI Programming Language 🤖💻

The transformation system can be understood as a structured way of expressing MIDI edits.

TARGET:
Closed Hats

RANGE:
Entire Clip

PROPERTY:
Velocity

TRANSFORMATION:
Saw(period 2.7 beats)
+
Saw(period 4.9 beats)

More complex formulas may combine base values, periodic waves and randomisation.

Velocity =
Base Velocity
+ Saw Wave A
+ Saw Wave B
+ Random Variation

Clamping Values 🧱

Mathematical transformations may generate values outside the valid MIDI range. Clamping keeps them safe.

Velocity minimum = 1
Velocity maximum = 127

150 → 127
-10 → 1

1️⃣1️⃣ Drum & Bass MIDI Transformation Workflow 🔥🥁🔊

Hi-Hat Humanisation

“Find my hi-hat clip. Apply light swing. Add a slow cosine velocity LFO. Layer a second saw modulation every 2.7 beats. Randomly replace some hats with shaker notes and set those shakers to 50% probability.”

Snare Roll

“Find the snare roll in bar sixteen and apply a crescendo from velocity 30 to 127.”

Reese Bass Development

“Find my eight-bar Reese MIDI clip. Keep bars one and two unchanged. Shift bars three and four up one scale step. Shift bars five and six down one scale step. Make bars seven and eight more rhythmically active.”

1️⃣2️⃣ Complete Drum Humanisation Recipe 🥁🧠

1. Find the drum MIDI clip.
2. Apply a crescendo to the final snare roll.
3. Apply a cosine LFO to closed-hat velocity.
4. Change the modulation to a saw wave.
5. Layer another saw at a different period.
6. Apply light swing.
7. Increase swing if needed.
8. Cycle hats through multiple Drum Rack pads.
9. Randomise selected percussion sounds.
10. Add probability to alternate hits.

1️⃣3️⃣ Best Prompting Formula 🎯

Example 1

“On the snare notes in bar four, ramp velocity from 1 to 127.”

Example 2

“On all closed hats, apply a saw-shaped velocity LFO with a period of one bar.”

Example 3

“In bars three and four, transpose all piano notes up one scale step.”

The more clearly you identify the target, time range, MIDI property and desired transformation, the more reliable the result should be.

1️⃣4️⃣ Recommended Producer Pal MIDI Workflow 🧠

Main Strengths ✅

• Manipulate many MIDI notes simultaneously.
• Target specific pitches and time ranges.
• Transform velocity, timing, duration, pitch and probability.
• Use mathematical waveforms and combined modulation functions.
• Create non-bar-aligned evolving patterns.
• Perform scale-aware melodic transformations.
• Edit multiple clips.
• Apply limited transformations to audio clips.

Things to Watch Out For ⚠️

• Extreme velocity transformations.
• Excessive swing.
• Too much randomisation.
• Wrong pitch targets on Drum Racks.
• Transformations affecting the wrong time range.
• Incorrect scale settings.
• Complex formulas becoming too chaotic.

Use AI for experimentation—but keep your ears in charge. 👂🧠

Final Thoughts 🎤🤖🎹

Producer Pal's MIDI transformation system offers a different approach to AI-assisted music creation. Instead of asking AI to generate the perfect MIDI pattern from scratch, you can begin with a simple musical idea and progressively transform it.

CREATE SIMPLE IDEA
       ↓
TRANSFORM VELOCITY
       ↓
TRANSFORM TIMING
       ↓
ADD PITCH VARIATION
       ↓
ADD PROBABILITY
       ↓
APPLY SCALE-AWARE CHANGES
       ↓
LISTEN
       ↓
REFINE