Midi Sheet Music is a free program that plays MIDI music files while highlighting both the piano keys and sheet music notes. Works on Windows, Mac OS X, Linux Ubuntu, iPhone / iPad and Android.

A Twitch bot that lets people from Twitch chat request songs from your Foobar2000 playlist.
A portable MP3/WMA/OGG/FLAC file manager for Sony players. Simply copy it on your usb player and use it wherever you are! It is an alternative to SonicStage. (Was NW-E00x Mp3 File Manager…)
wtext is a program that will accept ASCII text as input and generate International Morse Code as output. The output formats can be:
DR14 T.meter is a free and open source command line tool for computing the Dynamic Range of your music according to the procedure used in the off-line meter released by the Pleasurize Music Foundation.
This tool is a very useful measure of how loud your music is, and for understanding that a good quality album always has a wide dynamic range, and it’s also useful for understanding the effects of the so called ‘loudness war’.
Dr14 t.meter is released under the terms of the GNU GPLv3 license and is intended for the Linux users who can not use the Windows application released by the Pleasurize Music Foundation, or the plugin for Foobar2000.
I’ve largely tested this application and it has always returned results identical to those of the official off-line meter.
Foobar2000 plugin for looping track intervals and slicing CUE sheets.
ffprobe -i filename -print_format json -show_chapters -loglevel error > chapters.json.json file.Featured MIDI File Player for Linux, Windows, and macOS written in C++, and using Qt5 and Drumstick2.
Musical instrument strobe tuner; a real-time emulation.
sourceforge.net/projects/strobetuner
en.wikipedia.org/wiki/Electronic_tuner#Strobe_tuners
Application which detects musical notes from the microphone. It allows listening to the microphone and play the detected notes to output (in MIDI). Multi-language support.
Audiomack is a FREE, limitless music sharing and discovery platform for artists, tastemakers, labels, and fans.
Subsonic is a web-based media streamer, providing ubiquitous access to your music and video collection. More than 20 apps are available for Android, iPhone, Windows Phone, BlackBerry, Roku, Chumby, Sonos etc. Supports virtually all media formats, converting files on the fly. Also includes a Podcast receiver and jukebox feature allowing you to control what’s playing on your computer from your mobile phone.
www.subsonic.org
sourceforge.net/projects/subsonic