The buttons at the top of the page take you to the other two parts of Page R: the pattern editor and the song editor.
Each song remembers which instrument is needed to play it. Tapping the left instrument button will take you to Page 3, where you can edit the selected instrument. Tapping the "Change..." button will let you choose a different instrument for this song.
Allows you to change the speed of the song. Tap the + or - buttons to make fine adjustments, or hold them down to adjust a little faster.
This allows you to save the song as a .RS file (which can be shared with other Fairlight and Vogel CMI App users) or as a MIDI file. See the MIDI help page and the Sharing help page for details.