LiveTrax - LiveTrax is an app by MasterMedia Productions through which musicians can control the playback of their favorite track during live performances by using simple controls.

ChordU - Extracts chords from any song, integrated YouTube.

Go Button - Go Button is a mobile audio app designed to provide professional playback of music and sound effects for live shows. It provides a creative, self-contained show control system that runs on your iPad, iPhone, or iPod touch.

Chordify - Chordify turns any music or song (YouTube, Deezer, SoundCloud, MP3) into chords.

AudioBus - With Audiobus, the revolutionary new inter-app audio routing system, you can connect your...

yalp.io - Automatic chords extraction from mp3 and YouTube