Improving the Charts app display (bug report)

Notes that I make in the Charts app for songs on one device are then displayed differently on another device with a different form factor. Can this issue be resolved on the software side so that, at the very least, the notes – regardless of which device is used – are always displayed in the same way, in the position the user wants? So far, at least for me, the entries always shift...
...and I’m also having the problem that the song sheets are displayed differently on different devices and, depending on the device and form factor used, parts of the songs that you actually wanted to see are suddenly cut off. Would it be possible to fix this somehow, so that the areas important to the user can perhaps be selected on every device and the zoom level automatically adjusts across different devices, ensuring that the important areas always remain visible whilst the notes are still scaled correctly? I think that would be very helpful. Thank you very much!