VCV Rack - A cross-platform modular synthesizer.
VLC Media Player - VLC is a free and open source cross-platform multimedia player and framework.
Pure Data - Pd (aka Pure Data) is a real-time graphical programming environment for audio, video, and graphical...
AIMP - AIMP : Free Audio Player : Официальный сайт программы
miRack - Eurorack-style modular synthesizer for iOS.
foobar2000 - An advanced freeware audio player for the Windows platform.