Yes! I like this concept a lot. I think you could use better sounds for the chords because when you build a full chord it gets sorta crackly. Also, more variety and polish would be nice. I think you could add like, a bass hit, or something musical that times with the disappearing/reappearing platforms and it would add a lot of depth in the gameplay.
I look forward to more, make sure you hit me up with further development!
Wonderful job!
The crackling is likely due to clipping. My audio was on very low to begin with so I didn't get that. Sine waves mesh together and increase amplitude which eventually will peak what the computer is able to output thus creating crackling. Solve this issue by lowering the output each individual tone is at so when the chord plays they don't go over the headroom. Another possiblity is that your sine waves are not being cut at 0 if you are looping. Going from -10 to +10 wil create a clipping sound since you are skipping all the decibles in between.
