Think about classical music and it’s likely you’ll fall upon the same stereotypes. Last Night of the Proms, old folk in cardigans, expensive red wine and a pre-show dinner. But now there’s a newer, inclusive classical trend. Boiler Room hosted Steve Reich; Jon Hopkins is a festival headliner, and rapidly ascending is Askjell, the Norwegian neo-classical producer you might already know from his work with BBC Music’s Sound of 2018 winner Sigrid.