As a clarinetist, Onishi has collaborated with composers Carolina Heredia, Oswald Huynh, Bret Bohman, and Andrew Crossley. Since November 2021, together with Santiago Beis, he plays in the Onishi-Beis Duo, an improvisation duo with live electronics.


Soprano Clarinets:
  • Instrument: Buffet Crampon Festival (B-flat and A) (ca. 2002)
  • Mouthpiece: Vandoren M15, BD5, Selmer Concept
  • Ligature: Vandoren Optimum
  • Reed: Légère European Cut, Strength 3.50/3.75
Bass Clarinet:
  • Instrument: Buffet Crampon Tosca 1195 (2019)
  • Mouthpiece: Selmer Concept
  • Neck: Buffet Crampon Icon
  • Ligature: Vandoren Optimum
  • Reed: Légère Signature Cut, Strength 2.75/3