Synth freaks out at really high notes and starts trickling NaNs into the pipeline

[1j01]

It starts feeding back on itself in a way that it's not supposed to and it results in really loud noises ending up as Infinities, which cause NaNs which cause NaNs which cause NaNs which cause an error in tuna.js which can break the sound completely and/or make the string partially invisible; it can also make the particular string permanently incredibly loud, for all the notes (because I have it copy over the array data when resizing it to change the period)