Timestretch BPM Pitch changer & gapless musicplayer. Revolutionary seamless/gapless musicplayer with easy-to-use timestretch pitch for professional fitness instructors. The built in BPM analyzer let´s you create your own music library and browse by BPM alphabet or source. Create your personal playlists for instant playback. Download and play MTrax mixes on-the-go. Watch your purchased videos directly in the app.