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Non Sequencer


The Non Sequencer is a powerful, lightweight, real-time, pattern-based MIDI sequencer for Linux--released under the GNU General Public License (GPL). It utilizes the JACK Audio Connection Kit for MIDI I/O and the NTK GUI toolkit for its user interface.

Everything in Non Sequencer happens on-line, in realtime. Music can be composed live, while the transport is rolling.

Please see the Manual for more information.


Simple single-click note placement

JACK MIDI Input/Output

Multiple Triggering Modes

MIDI Pattern Triggering

Phrase/Sequencer Based Compostion

Pattern Based Composition

Live/Realtime Changes

Fast, Light Interface

Single file MIDI SMF2 storage

SMF0/SMF1 import

Scale/Instrument Constrained Input Mode

Pan/zoom Thumbnail Navigation


The following libraries are required to build Non Sequencer:

  • JACK >= 0.103.0
  • sigc++ 2.0
  • NTK


This work is licensed under a Creative Commons License