I am trying to make a piano keyboard but use instances of one sprite which represents one of 12 keys.
I'd like to have a different color for every key.
English is not my forte ( ) but what I understand from this paragraph is that you want instances of a single Sprite to form the piano. That is exactly what I have made in my example.
[quote:2tyhlm1g] Should I just make 12 sprites?
I know nothing about exporting on android, I don't care about phones and tablets, but I find that using 12 different Sprites for each note is highly unlikely to affect performance. If you find that using the variable system on a single Sprite too complicated, you can use 12 sprites with no problem at all.
[quote:2tyhlm1g]Basically, the app is really simple.
All there is is a piano keyboard with keys that have a one frame animation.
Plus, there would be notes which can be dragged on screen to make a composition.
This part sound way more complicate than the piano part. You really should read some of the basic tutorials. If you can warp your mind around action script, C2 event programming system will feel like a cakewalk.