00:28:420 (4) - should start on 00:28:580 instead, it's an active note and having a slider end there doesn't seem right
(both for vocal and drums)
00:09:591 (1,2,3,4) - this should start at 00:09:750 and you can also change the last slider (4) to be 2 circles instead so that 00:10:867 (5,1) remains the same
watch out for how you overlap notes, could help with visuals
Ex. 00:49:963 (1) overlaps 00:49:484 (2) but it kinda doesn't look nice
00:49:963 (1,2,3,4,1) - vocal is very strong here, follow it
sliders at 00:49:963 (1) - "a", 00:50:441 (4) - "ra" to emphasize vocals
00:24:431 (1,2,3) - you should not group these notes in the same pattern as 00:23:793 (1,2,3,4) to distinguish that from 00:24:431 (1,2,3)
00:26:186 (4,1) - I think it's better if u replace these with a slider because you are mainly following the vocals in this section, otherwise you lose the consistency and it's unclear what you're following in 00:25:867 (2,3,4,1,2)
00:23:793 (1,2,3,4,1,2,3) - the notes are all in one clumped together in one area but it seems ur following the guitar for 00:23:793 (1,2,3) and the vocals for 00:24:271 (4,1,2,3)
separating the notes into 2 "clumps" could help with clarity when playing