This must be the most updated song in C3. Well...
[28/9/19]: FINAL! Added count-in and manual reductions, Keys animations now work properly, and a few small sections were tweaked for G and (P)K.
[20/6/19]: Added Pro Keys! (Feedback appreciated, as I've no means of testing it)
[17/12/18]: Latest update with fixes to drums and harmonies charts.
Song preview thanks to Pizzachamp.