Midi Playing, Encrypted Midi with Lyrics, Verses Playing and Soloing.Standard Type 0 and Type 1 midi files can be played. Lyrics are built into midi file and encrypted. Sequential playing of many verses. Each channel can be enabled or disabled for ease of soloing.You can customize your singing experience with change in tempo, transpose, channel, and volume. Unlimited days of download of up to 10 songs a day for registered version.