Needs harmonic lines and some dead space

[cregkly]

It is really hard to gauge which harmonic the pointer is in, some light lines to show the boundaries between harmonics would probably be best. As opposed to lines where the harmonic is. I think it is easier to target some whitespace between some lines vs trying to hit a line.

On a phone it is almost impossible to play anything in 1st position. Some buffer space around the edge would likely solve this.

Great job on this. Was lots of fun trying to play stuff.