Ultra-Sonic has been played on NTS in shows including Mutualism, featured first on 16 January 2021. Songs played include We Want One More.

Ultra-Sonic are a dance act from Scotland. Their first release "Obsession" (1992) was hugely popular in Scotland, due in no small part to the vocals provided by Heather Allan (Heather went on to provide vocals for UK Top 40 hit "Every time you touch me" with QFX). Their next release "Annihilating Rhythm" sold over half a million copies worldwide and enabled their label ClubScene to expand. The band outsold larger dance acts of the time but only in their native country. A familiar face at hardcore events such as Rezerection and Fantazia, Ultra-Sonic still record and perform.