00:03:243 (3243|3,3243|0) - you can try representing the synth as well with singles or doubles, on the columns that are empty
02:21:081 (141081|3,141081|0,141081|4,141081|1,141162|2,141162|6,141162|5,141243|4,141243|0,141243|3,141324|1,141324|5,141324|6,141405|0,141405|2,141405|4,141405|3) - i think you should transform this into some kind of jumptrill because chordstreams at this density might be to hard to hit compared to the rest of the map (this is only a suggestion and dont feel forced to apply this, but if you do, you should fix the other ones too)
00:01:297 (1297|4,1297|6,1297|5) - this is a triple but 00:03:243 (3243|3,3243|0) - is double as well as most of the chords of this part, even tho they all have the same intensity of sound, so i recommend doing all of them as triples (expect a few of them that should stay doubles cause not as intense)