While I love the app itself, it frustrates me a lot that it updates regularly, bringing with it changes on the formatting of the sheet music. I use my phone or kindle to practice. Every time it updates, I have to get used to the new page turns because the update changed where in the sheet music it cuts off to a different page. Then I have to readjust the next time over and over again. It makes memorizing and learning pieces, especially, difficult. Another large issue I have, as a pianist, is that sometimes when I tap the screen fast on the right side for a page turn since I don’t have much time to get my hand back on the keys, the app instead pulls up the background stuff about the piece im playing (the title, the play and pause button, etc), obstructing the sheet music itself and slowing me down. This happens way too frequently, even when I don’t tap anywhere near the center of my device.