Duo of Kazuhisa Uchihashi (daxophone) and Junji Hirose (tenor saxophone) excerpt from two live performances in 2014 and 2015.

Kazuhisa Uchihashi is a japanese guitarist  involved in free improvisation music. Born in 1959 in Osaka, Uchihashi began to play the guitar at age 12, playing in various rock bands, though he later studied jazz music. In 1988 he joined the band the First Edition, and in 1990 formed the band Altered States. He was also a member of Otomo Yoshihide's Ground Zero from 1994 to 1997. Uchihashi also plays daxophone, and in addition to his role as a free improviser, Uchihashi has been the musical director for Osaka theatre group Ishinha, has held improvisation workshops (a project known as New Music Action) in various cities in Japan, as well as London, Oslo, and currently in Vienna also. Uchihashi has set up his own record label, Innocent Records a.k.a. Zenbei Records, had held a music festival annually since 1996 Festival BEYOND INNOCENCE.

Junji Hirose is one of the most unique artists on the Japanese free improvised music scene. Since the eighties he has developed highly diverse and creative sound, playing tenor and soprano sax and the self-made "noise machine."