After selecting a song bank, Set Middle C! by drawing a C centered on a line of college-rule dot paper.  Draw new C's to create other staffs.
Set tempo or the duration of a whole note at any time by tapping twice on unwritten paper.  Beats/min =  will show.
Draw whole to 1/16 notes () or rests () centered on any line or space within six lines below (E2) or above (A5) the line of the C.  The note or rest position, pitch, value, and clef will show and play.
Tap on a note or rest to see and play it again.  Tap on the C to hear your composition from the last note that you tapped.
You can add a sharp () or flat () before individual notes.  If you draw a sharp or flat before a C, the pitch of all notes on that line or space at all octaves will be modified for that staff.  Opposite accidentals on the key signature and before a note make the note natural.
You can cross out () any symbol including crossing out a C to delete a whole staff or delete an entire song under Resets.

MusicComposer may ask you to help identify a symbol by showing your drawing, its best match, and the % agreement, e.g., If you have not finished drawing, ignore this message. If you agree with its match, tap on the symbol or on the right navigation arrow. If you do not agree with its match and the symbol (except for a cross out) that you meant exists in you composition, tap on that symbol to teach the program the meaning of your drawing, otherwise, tap on the up or down navigation arrows to find the best match and then tap on the right navigation arrow to confirm the identity of your symbol. As you input more symbols, the program will do a better job of recognizing your handwriting. MCR (Music Character Recognition) can be reset under Resets.