00:21:896 (14,15,16) - on here you followed piano as a clickable object, however you made chose to follow foot drums on the previous section on 00:04:335 (4,5,6,7), choosing to be consistent whether if you follow piano or drums would be better imo
00:01:957 (4) - no object in the blue tick (00:01:866) when there is clearly a sound of piano
01:04:518 (1,2,3) - awkward/uncomfortable deceleration, i personally would put the slider on the left
01:39:797 (1,2,3,4,5,6,7,8) - stream starts too early. First two notes are unnecessary as there are no sound of piano.