Quick answer — Yoshihisa Hirano worked on Hajime no Ippo: The Fighting! New Challenger (Music), Hajime No Ippo: The Fighting! - Rising - (Music), Ouran High School Host Club (Music) and 20 more anime.
Yoshihisa Hirano worked on Hajime no Ippo: The Fighting! New Challenger (Music), Hajime No Ippo: The Fighting! - Rising - (Music), Ouran High School Host Club (Music), Broken Blade 4 (Music), Broken Blade 5 (Music), Broken Blade 3 (Music), Death Note: Relight (Music), Broken Blade 2 (Music) and 15 more.