ForteReader is an application that lets you view and playback your sheet music on your tablet or your smartphone. You can use this utility for rehearsing your parts and playing along the playback. You can import FORTE mobile files, MIDI files, and MusicXML files. It supports volume and pan control for each instrument, tempo control, metronome, muting or unmuting single tracks, and more.
Ableton Live is about making music; for composition, songwriting, recording,etc.
