Mark Orton has been played on NTS shows including Loose Bones, with Their Pie first played on 29 January 2018.

Mark Orton is a composer working in the mediums of film scoring, concert music, and radio drama. He is a multi-instrumentalist, performing on all manner of guitars, keyboards, and percussion. He is the co-founder of Tin Hat, a San Francisco Bay Area based composer/improviser collective with five critically acclaimed albums. He has written scores for dozens of films - documentary, feature, and fine art - and has composed music for modern dance, theater, experimental radio, video/art installation, the circus, and the concert hall.