I feel Yamaha's Registration system is very good also, the fact I can save 8 Registrations per song is great for me.

Which now with the Tyros 5, can include 4 Audio-links (which can be a song, rhythm, or any WAV file that will stream directly from the Hard drive) and continue to play even when changing registrations, until file is done or stopped.

Also 1 WAV or MP3 for the media song player

1 midi file

4 one touch settings

1 style

1 TXT file or lyrics and chords.

And you can do this 8 times per registration