Ashun had studied the guitar with legendary Spanish guitar virtuoso Pepe Romero, Nobutaka Nakagawa (student of “Andras Segovia”), members from Internationally renowned Los Angeles Guitar quartet such as William Kanengiser, Scott Tenant at USC where he received Master degree in Classical guitar performance. He had won a national guitar competition in 1988 in Osaka Japan.. Ashun is a guitar virtuoso covering the genres from Classical, Flamenco, and Jazz.
He had played with many renowned musicians including Bobby McFerrin, an original member of Gypsy Kings, Poncho Sanchez, Freddie Hubbard. His clients consists of VIPs such as Clint Eastwood, Dick Clark, Donald Trump, Mel Gibson, former LA mayor Richard Riordan as well as Rock Stars such as Eddie Van Helen, Duran Duran.