Qtractor vs Sequoia

Qtractor is a Linux desktop application for multitrack audio and MIDI sequencing and recording, aimed especially at personal home studios. Its non-destructive, non-linear editing supports unlimited tracks, overlapping clips, and unlimited undo and redo. Audio clips can use fades, cross-fades, gain, normalization, export, time-stretching, and pitch-shifting. MIDI work includes a piano-roll editor, Standard MIDI file formats 0 and 1, controller mapping, and SysEx setups. Qtractor supports OGG, MP3 playback, WAV, FLAC, and AIFF, as well as LADSPA, DSSI, VST2, VST3, LV2, and CLAP plugins. It uses JACK for audio and ALSA for MIDI and includes connection patchbay controls. Tracks can be mixed down, rendered, and merged; session and project descriptions are stored in XML files. Qtractor is free, open-source software under the GNU General Public License version 2 or later. The site lists version 1.6.4, released 2026-09-06, and provides binary downloads and CMake build instructions. The project says bugs remain while describing the software as production/stable.

Sequoia has no write-up on Specifiction yet; its figures are above.