Very cool! On my underpowered HP Win10 machine running Firefox, turning on the Analyzer messes with the timing. Almost like introducing a random swing percentage, so potentially a feature rather than a bug. :-) Keep it up, I am a former professional bassist turned data analyst, always working on my programming chops.
I stayed up super late one night playing around with weird css combinations to make the analyzer do amazing things and ended up scrapping most of them to improve performance. It was a bit of an afterthought and I could certainly figure out a way to optimize it.
