His first multi-MVA-nominated video for the band for This Momentary is an impressionistic document on life in and around Chernobyl in Russia, two decades after the world's biggest peacetime nuclear disaster. Dave and crew, again including DoP Ross McLennan, didn't travel quite that far for Halcyon, but a slate quarry in North Wales in mid-winter was arguably even bleaker. However the result, featuring the band and dancers in beautiful gowns styled by Sian Jenkins, is just as stunning.

"I used the description of the term 'Halcyon' (a term for peace or calmness) as inspiration for a dance video in an old slate quarry," says Dave. "It hailed three times on the shoot day which made things tough to say the least. I really have to take my hat off to the band, the entire crew and especially the dancers for enduring the ridiculously harsh conditions in order for us to get the most out of our short winter shoot day."

Watch 'Delphic's Halcyon by Dave Ma' here