Metta, Benevolence BBC 6Music : Live on the Invitation of Mary Anne Hobbs by SUNN O))), released 22 January 2022 1. Pyroclasts F 2. Pyroclasts C# 3. Troubled Air In late October 2019, following a successful UK tour ending in a sold-out concert at the mythical Roundhouse in London, SUNN O))) entered studio 4 of the BBC Maida Vale.