[Frostwraith]

Composer/arranger breakdown from the link posted by CHz.

Note: some songs are arrangements of Yuka Tsujiyoko's work from Fire Emblem Gaiden (which is also included in this soundtrack on Disc 5's tracks 30 to 63), but I'm not now completely sure which songs are original compositions or rearrangements from Gaiden (since I'm not familiar with the Japanese titles), so if someone could check that out in the meantime, I would be thankful.

Spoiler:

Takeru Kanazaki
Disc 1: 1, 2, 10, 12, 13, 14, 15, 16. 20, 24
Disc 2: 3, 4, 7, 9
Disc 3: 2, 11, 15, 16, 17, 21
Disc 4: 11, 15, 16, 19, 20
Disc 5: 13, 15, 17, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29

Yasuhisa Baba
Disc 1: 3, 4, 9, 11, 17, 18, 22, 23, 25, 26
Disc 2: 5, 6, 10, 11, 12, 13, 18, 19, 20
Disc 3: 1, 3, 5, 6, 10, 13, 18, 19, 20
Disc 4: 2, 6, 9, 10, 14, 17, 18
Disc 5: 7, 11, 12, 14, 16

Takafumi Wada
Disc 1: 6, 7, 8,
Disc 2: 1, 2, 15, 16, 17, 21, 22, 23
Disc 3: 4, 7, 8, 12, 14
Disc 4: 3, 5, 12
Disc 5: 2

Sho Murakami
Disc 1: 5, 19, 21, 27
Disc 2: 8, 14
Disc 3: 9
Disc 4: 1, 4, 7, 13
Disc 5: 1

Yoshito Sekigawa
Disc 4: 8

Hiroki Morishita
Disc 5: 3, 6, 8, 9, 10

Yoshito Hirano
Disc 5: 4

Rei Kondoh
Disc 5: 5

Yuka Tsujiyoko
Disc 5: 18, 30~63

Feel free to point out and correct any mistakes I may have made.

EDIT:
https://twitter.com/beagle_wada/stat...57787536400385
Takafumi Wada tweeted some pictures of the booklet. Contains musician credits.