Cool concept!
It's something I actually like doing, so I had a bit of practice already haha
It must be hard taking account frequency, low / big values, and floating point precision I suppose
If there wasn't a limit, any sin/cos/mod with a high frequency would crack them all (kinda did but required little adjustments because of it, also when targets were a bit too small)
It kinda defeats the melodic purpose of the game, but I had to try cheating my way in
Very nice, I enjoyed my time!