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Here's some credits:

Spoiler:

All Music Composed & Sound Produce by Michiru Oshima

[Moscow Recording]
Russian State Symphony Cinema Orchestra
Conductor: Sergei Skripka
Production Manager: Marina Dubovskova
Recording Studio: Mosfilm Studio
Recording Engineer: Alexander Volko

[Boston Recording]
Conductor: Michiru Oshima
Flute/Piccolo: Linden Wu
Oboe: Samuel Waring
Clarinet/Bass Clarinet: David Dziardziel
Horn: Whit Hill, Bob Marlet, Megan Riccio
Trumpet: Andrew Sorg, Andrew Moreschi, Greg Gettle
Trombone: John Faieta, Rick Copeland
Bass Trombone: Phil Hyman
Percussion: Charlie Rosmarin, Noriko Terada
Harp: Lily Press
Piano: Tony An
Saxophone (Sp, Alto): Kangyi Yu
Ethnic Flute(s): Yazhi Guo
Ethnic String Instrument: Jim Dalton
Concertmaster: Sho Omagari
Violin I: Su Yin Chan, Nan Lu, Stephanie Skor, Rachael Schlosberg, Nelli Jabotinsky, Maya French
Violin II Principal: Shaoqing Xu
Violin II: Kun Shao, Michael Hustedde, Travis Rapoza, Marcio Candido, Onur Dilisen
Viola Principal: Sam Kelder
Viola: Rebecca Hallowell, Anna Shemetyeva, Anna Stromer
Cello Principal: Ignacy Gaydamovich
Cello: Kett Lee, Elena Korableva, Ben Swartz
Double Bass Principal: Evie Huang
Double Bass: Moises Carrasco, Nathan Varga

Production Company: SoundtRec Boston
Production Director: Shota Nakama
Production Assistant: Emily Shibata
Contractor: Rebecca Hallowell, Rick Copeland
Recording Studio: WGBH Fraser Recording Studio
Recording Engineer: Antonio Oliart
Studio Manager: Thomas Devlin
Additional Recording Studio: The Record Co.
Recording Engineer: Matthew Peiffer

[Paris Recording and Mix]
Flute/Piccolo: Claude Lefebvre
Oboe: Olivier Doise
Clarinet/Bass Clarinet: Patrick Messina
Horn: David Defiez, Guillaume Begni, Benjamin Chareyron
Trumpet: Marc Geujon, Pascal Clarhaud, Nicolas Chatenet
Tenor Trombone: Jean Raffard, Etienne Lamatelle
Bass Trombone: Simon Philipeau
Concertmaster: Stephanie Marie Degand
Violin I: Cécile Tête, Laurent Philipp, Patricia Hayot, Cédric Laroque, Cécile Brey, Catherine Montier, Eun Hee Joe
Violin II Solo: Sylvie Sentenac
Violin II: Emilie Belaud, Jeanne Lancien, Pelovski Alexandre, Melet Geneviève, Stephane Causse
Viola Solo: Pierre Lenert
Viola: Olivier Grimoin, Jean Michel Lenert, François Bodin
Cello Solo: Tatjane Uhde
Cello: Maja, Myrtille, Julie Sevilla
Double Bass: Daniel Marillier, Sylvain Le Provost, Igor
Percussion: Jean Baptiste Leclerc, François Garnier
Harp: Odile Abrell
Piano: Ariane Jacob

Production Director: Pierre Lenert
Recording Studio: Studio Guillaume Tell
Recording Engineer: Denis Caribaux
Assistant Engineer: Florent Berthier, Adrien Bolko

[Tokyo Recording]
Chorus:
Drums: Shuntaro Kado
Electric Bass: TABOKUN
Electric & Acoustic Guitar: Tomoki Ihira
Violin: Koichiro Muroya
Flute: Rie Akagi
Mandolin, Bouzouki, Electric Upright Bass, Viola Caipira: Hitoshi Watanabe
Percussion: Ikuo Kakehashi
Tin Whistle: Akio Noguchi
Recording Studio: Landmark Studio / Victor Studio
Recording & Mixing Engineer (Disc1-Tr3,19&37,Disc2-Tr24): Yoshinori Adachi
Recording Engineer: 岸本和樹
Assistant Engineer (Disc1-Tr3,19&37,Disc2-Tr24): Mai Kondo (Landmark Studio)
Special Thanks: Noriko Sekiya (FaceMusic), Mika Yamakawa (Rockriver)

Directed by Takeki Kobayashi (TOHO music)
All Theme Song Directed by Daisuke Mizuno (TOHO)
Mastered by Mitsuyasu Abe
Mastered at Sony Music Studios Tokyo

These still need to be added
Chorus members: http://i.imgur.com/hpVolmc.jpg
Theme song credits: http://i.imgur.com/ZYEyyMn.jpg

And I'm guessing the engineer 岸本和樹 is somehow a typo of Hiroyuki Kishimoto.