Radiantly Alive hosts Vocal Edging, a workshop its facilitator describes as a living laboratory at the frontier of the inexpressible: group work with the voice and the sounds that sit past ordinary speech.

It is led by the facilitator who posts as Mystic Lio. The studio's weekly line-up placed it on Saturday 10 October and gave no start time or price, so ask the studio for the hour and whether to book.