irr. app. (ext.) has been played on NTS in shows including ARRHYTHMIA, featured first on 4 December 2018. Songs played include Knowing Me Knowing You.

irr. app. (ext.) is the expanding sound experiment for a San Francisco, CA based multi medium artist by the name of Matt Waldron. He began his musical endeavors in 1989 at the age of nineteen, though he wanted to start making music long before then just never had the finances to begin. First starting out, merely collecting sound sources on a "boom box" type recorder, he would record from one deck to another adding a new ‘track/layer’ with each session,…