[Senth]

Problem
Whenever I'm learning or want to re-listen to some passages in the sheet I usually don't. Why? Because I have to manually find the place in the music, sure it doesn't take that long time maybe 10s, but it's too much effort to do, especially if I want to switch back and forth in a piece or relisten to a certain section.

Suggested Solution
The ability to add special "play" annotations inside the sheet music, whenever the user press this the piece will automatically begin to play from here.

Implemention in App (with Scenario)
I'd say this is solution is both easy to implement and easy to use.

1. Start playing the music with "add play icons mode" (there must be a better name for this).
   
2. When the user presses pause s/he will be able to
   
3. click anywhere in the sheet music and a play icon will appear there.
4. The user continues playing the music and repeats steps 2-4.
   

This allows the user to either 1) create play icons evenly over the whole piece or 2) just where s/he want's them to be.