Unison is the first album of Japanese composer Shin Terai, released in 1999. The album features contributions of bassist and producer Bill Laswell, avant-garde guitarists Buckethead (who would join Guns N' Roses soon after the recording sessions) and Nicky Skopelitis, and Parliament-Funkadelic keyboardist Bernie Worrell. The album met very good reviews from critics mainly because of the soft guitars and the funky bass.[2]