We know that most of the music is composed and/or arranged by 宮崎慎二 Miyazaki Shinji; we also know that portions of the music are based on the game music, which were composed by 増田順一 Masuda Jun'ichi (not in the M8 credits, for some reason...), 一之瀬剛 Ichinose Gō and 青木森一 Aoki Morikazu.
But do we know who actually performs it? This little piece of information has never been listed in movie credits, TV credits or even OST credits, to the best of my knowledge.
I guess, the first step to researching this is to find out what company Miyazaki Shinji is associated with - TV Tokyo, OLM, Half HP Studios, and Media Factory are possible candidates. (Probably not Game Freak - if that were the case, he'd probably be composing for the games as well; nor Nintendo - after all, Nintendo was the company [wp]Tanaka Hirokazu[/wp] quit in order to pursue Pokémon anime.)
But do we know who actually performs it? This little piece of information has never been listed in movie credits, TV credits or even OST credits, to the best of my knowledge.
I guess, the first step to researching this is to find out what company Miyazaki Shinji is associated with - TV Tokyo, OLM, Half HP Studios, and Media Factory are possible candidates. (Probably not Game Freak - if that were the case, he'd probably be composing for the games as well; nor Nintendo - after all, Nintendo was the company [wp]Tanaka Hirokazu[/wp] quit in order to pursue Pokémon anime.)