Probability based Melodies - EASY (Patreon)

In this video, I walk through building a generative melody sequencer in Bitwig's Grid using probability logic and a custom recording system. The patch cycles through notes in a chosen scale, applies adjustable probabilities per note, and uses sample and hold to create evolving melodies. I also demonstrate how to record and loop these generated sequences in sync with the transport bar to get more structured, repeatable patterns.

Key Points:

Poly Grid Setup:

Uses a sine oscillator with amplitude envelope.

A Pitches module stores notes (e.g., D# minor scale, 7 notes used).

Probabilistic Note Selection:

A clock signal scans through stored notes.

A Probabilities module assigns likelihood to each note.

Sample and Hold selects and holds pitches based on probability match.

Sound Shaping:

Added saw wave, low-pass filter, and reverb/delay for tonal variation.

Recording Logic:

Uses latch and phase comparator to trigger and stop recording at bar start/end.

Clock One Ties module ensures recording starts exactly at bar start.

Notes are recorded, not audio, for accurate MIDI-style playback.

Playback Logic:

Playback is synced and looped using a trigger that lasts one bar.

Extra Features:

Added octave shift with a 33% chance for variation.

Optional white noise + sample and hold for modulating other parameters.

Automatic sequence regeneration every 32 bars via transport-based trigger.

Let me know if you'd like a diagram or preset reference for any of the modules mentioned.

Patch Download: https://bit.ly/4mE2OkN