Leif is a frequent guest to NTS, appearing on various shows between 9 March 2014 and most recently on 20 April 2019. Leif has been played over 130 times on NTS, first on 3 August 2013. Leif's music has been featured on 129 episodes.

UK-Based Techno / House / Downtempo producer Leif Knowles, who co-runs the vinyl label UntilMyHeartStops and has released many EPs on other labels since 2003.