Well part of the problem with the Amano-influenced Dissidia line-up is they took people with cool colored haor and turned most of them blonde =P (Yes, i know that was already the case in the original concept art, but i don't care. That's not the way they were in the games.)
Not that i've actually looked at the Dissida stuff much since i don't have a PSP.
I've perfect chained several Dark Notes, of course i've also played a lot of Dark Notes. According to my ProfiCard...
Rhythmia - 36736
Trophies - 18/64
Playtime - 21:54
Challenge songs cleared - 69
Perfect Chain Challenge songs - 22
Total Dark Notes cleared - 95
Perfect Chain Dark Notes - 7
Distinct Dark Notes cleared - 35
So far i've unlocked Cid, Rydia, Faris, Locke, Aerith, Vivi, Yuna, and Ashe.
I've got 1 golden shard, 4 silver shards, 5 grey shards, 3 white shards, and 7 rainbow shards.
I got my main party up to level 99, so i gave Vaan the Exp Hound ability and paired him up with Faris, Aerith and Rydia, all at level 1, so i could accumulate a bunch of low level notes while leveling Vaan up. Though i'm starting to worry about if there's a limit to how many Dark Notes you can have :) Once Vaan hits 99 i'll start leveling up Cid in the same way (because i just found out about the Libra skill) and so on until i'm back up to a full party of level 99s and getting level 99 Dark Notes.
Oh, and i managed to do one street pass so far, and it turns out you get a new Dark Note every time you clear one for the first time, so i've got a "backup" note now, not that i really need it.
And i've now encountered one Dark Note where i didn't get the Moogle, but definitely missed out on the person at the end a lot more, even when hitting all the notes.