Replay button: 5 secs or 10 seconds instead of slide control only.
There are technical areas that I may have trouble with and need/want to replay that section or notes. Instead of stopping and trying to fight with the slide control(at the bottom of the screen where the IOS screen close controlling close app) perhaps add a replay button that only rewinds your current location 5 or 10 seconds and allows you to tap the screen and repeat tough areas while in the song...
I’m so glad I’m not the only one fighting with the iOS controls. Just makes me want to scream.