graphical front-end for editing/transposing abc music files
GUI to work with abc notation
fl_toadflax is a viewer/editor for abc music notation files
Tracked Music Editor
Extend abcm2ps to support direct generation of PNG, SVG and PDF files
Featureful native Commodore 64 music tracker with MIDI/XM converter
Perform dynamic tunings for realtime music.
A music score editor
Buzztrax is a modular music composer for Linux
at new home :-) https://github.com/supermurat/hamsi-manager
Transpose melodies for diatonic harmonica
A tool for automated downmixing of live multitrack sound recordings
Give the chord progression and a style and jchordbox generates a song.
Open-Source Braille Music Notation Software
From genes to music