Reading instructions and song names in a concert

Hello everyone,

I'm a keyboard player, and I'm looking for a good way to keep track of song names and any notes or instructions I need during live performances.

At the moment, I'm using Braille paper, but am writing too much, and need to find an alternative.. I also tried using my iPhone with my hearing aids, but I'm running into a few issues. I'd appreciate any advice on the following:

• I need the screen to stay on all the time without locking, because the maximum of 5 minutes is not enough during a concert. Is there a way to disable auto-lock completely?
• I know how to navigate line by line with VoiceOver, but sometimes I accidentally touch another part of the screen and lose my place. Is there a way to keep VoiceOver focused on a specific position, so I can simply flick my finger and continue reading from where I left off?
• Are there any apps or solutions that work better than the Notes app for this kind of use?

Any help would be greatly appreciated.