Passacaglia[^1]

A command-line tool which generates music as Lilypond files, which can produce both sheet music and MIDI output.

Passacaglia has a variety of configuration options, selected by command-line options and with presets (named after the versions they were introduced in), including:

• the rhythm of the --harmony

• the --tempo in beats per minute

• the --min-len and --max-len of typical generated notes

• the --harmony-base and --melody-base pitches

• how --steady the melody's rhythms are

• how frequently rhythms should lengthen and split notes (--stutter)

• --gravity, --drag, and --nudge, which control how pitches are generated, loosely based on a physics simulation in which a force acts on the current pitch in a random direction.

Passacaglia is dual-licensed under the MPL-2.0 and CC-BY-SA-4.0.

[^1]: Technically, this should be named Chaconne, as the available harmonies are in C major, not a minor key, and the music is in 4/4 time.