Audio Editor
EasyABC is an open source ABC editor
A customized version of Audacity
audio sequencer
Audio Cropper 1-B6-2 (Perfected.Further+ Revised 2B)
a python program to generate, visualize, and manipulate short sounds
Deezer source separation library including pretrained models
Write audio cuesheets fast and efficient
SImple, powerful audio tagger for GNU/Linux
at new home :-) https://github.com/supermurat/hamsi-manager
Browser-based online video editor and encoding API
Very Powerfull Crossplatform Qt Based Music Note Editor[Still Planing]