SeqVerse

SeqVerse follows the host's transport and plays notes from a key and scale: as an arpeggio (15 directions) or at random, on a straight or Euclidean rhythm, with chance, swing, velocity and length variation. A seed makes the random choices repeatable, and a cycle length makes the output loop. Any run can be recorded as a MIDI file and dragged into your DAW. Free and open source.

Features

• Pitch: 12 keys and 43 scales over 1 to 8 octaves. You can include or leave out the octave note. With MIDI Root on, an incoming note sets the root. Play modes are Arpeggio (Up, Down, Up/Down, Converge, Thumb, Pinky, Skip and others) and Random.
• Rhythm: step rates from 1/32 to 1/1, triplets included. Every step can play, or use a Euclidean pattern (pattern length, pulses, rotation). Swing applies to every other step. A cycle length of 0.5 to 64 beats repeats the same notes each cycle.
• Feel: note length, length variation, velocity, velocity variation, chance per step, MIDI channel and seed (0 = new choices each time).
• Record: arm Record and start the host. The notes go into a MIDI file for a set number of bars, or until the transport stops. The five newest takes are kept in a SeqVerse folder in your music folder, and the editor has a button that opens it.
• Locked to the host timeline: every step follows from the host's position, so loops, jumps and starting mid-song keep the pattern in place.

Good to know

SeqVerse is a MIDI generator: its stereo audio output is silent and only there because some hosts need an audio port. Put an instrument after it. SeqVerse does not play incoming MIDI notes.

Free MIDI sequencer for Linux and Windows

SeqVerse is a free, open source MIDI generator plug-in in CLAP and VST3 format. It runs on Linux and Windows. Use it for arpeggios, Euclidean rhythms and endless melodic ideas in any host that loads CLAP or VST3 plug-ins, and send its MIDI to any instrument.

Note

SeqVerse runs on Linux and Windows, as CLAP and VST3. macOS has not been tried. Other hosts should work, but they have not been tried.