I like to add that maybe a hatch pattern inside the note indicating early/late, so you don't have to learn yet another color. i also want to have this in in practice mode, since flagging it red makes me think I hit the wrong key.

and/or have a followup screen that shows the whole song with all notes and how you did. Some time I hit the correct note but the app shows the note in red, indicating I didn't, but not what was wrong.

When in practice mode the text above the notes when played I.e, "Perfect, Early, Late" etc are presented in a shadowy and blurry text which is difficult to read as the notes scroll by, in Perform mode the text is clear and easy to read. Can you make it the same in Practice mode?

Beside each string of missed chord, there could be a little letter showing L for late or E for early or M for missed and something else for muted.

Excellent idea

Timing text is difficult to see.

This is great! Also, how about making it so when you play a song in performance mode and switch to practice mode, it remembers your mistakes as above so you can work on those sections.

Right now this happens in practice mode, but if you do performance mode and want to fix your errors, you probably can't remember where you messed up! Having this available as soon as you go to your next practice mode would be awesome.

Yeah, I’ve thought of this also... it would also provide you more information when you miss notes - I.e, whether it was your timing, or you played the wrong note etc.

This has been bugging me too, i only started this weekend but today i was getting lots of notes wrong and i have no idea why, i kinda figured its because of the timing, but i have no idea if im early or late, different colours for these would be awesome. I'd give you all 10 votes if i could.

This would surely be useful as you often cannot look at the text, especially on the higher levels. It would be even better if you can also see this after you've played the song so you can analyse where and what you need to improve.

This would be very helpful especially since latency is often the only thing "wrong" with the note. We VERY OFTEN hit the correct note(s) but time in the system not the performer is the issue. As you perform it can be confusing "did I play the wrong note?" or "is the timing off?"

I'd suggest that the feedback when playing a note (perfect, too early...) would be written in color, because I'm not allways can read it a the moment. I suggest
dark green = perfect
light green = good
blue =too early
violet = too late
red = wrong note

It would be good if you could have the notices for early and late notes be a different colour so it would be easier to tell where your timing is off.

Also in practice mode it would be good if there was a marker added to the notes your timing was off on so you can review after you played. Maybe an arrow below the note showing which direction you were off on or similar.

The "good," "great" and "perfect" notations that appear on the scrolling tab when you hit notes during exercises should be differentiated by contrasting colors or size or something that makes them easy to see in peripheral vision. This would help to see where I'm coming in early or late and would help identify where I'm losing points in my scores.