Suhirdjan built the instruments for the HMC American Gamelan, currently in use in Claremont, California. It is a set of iron and brass instruments tuned to my own versions of pelog and slendro. We perform new works composed by myself, Lou Harrison, invited composers, and students, often combining Western instruments with those of mas Hirdjan. We have released a CD with these instruments called Imbal-Imbalan, and they can also be heard on the dvd Celestial Dance.
Some compositions: https://soundcloud.com/bill_alves