“This is a document on the process of making a record over a few years and following the onward journey," Sampha tells Apple Music of Wave Therapy—his Apple Music Radio show. “I’ve spent a few years recording this, and I’ve really enjoyed talking to some of my favourite musicians, visual artists and thinkers.” Wave Therapy helps mark the arrival of the Londoner’s second studio album, Lahai, and sees him dive into his collaborative, creative and spiritual approach to music—with the help of special guests.