StemTab

StemTab separates songs into vocals, accompaniment, and instrument stems (guitar, bass, drums, piano, and other), then drafts editable standard notation you can correct while listening. Export audio, PDF, MusicXML, MIDI, and the project. Available on Web, iPhone, and iPad (Mac coming soon). Billing is by processing minutes; free preview and paid export on the Web app. It does not generate guitar tablature (TAB), and it does not separate different singers or identify timbre. Only process audio you own or are authorized to use.