Trumpeter-composer Henry Lowther is one of Britain’s most respected and well-liked musicians, a distinguished veteran revered for giving an anxious Miles Davis tips on rock-trumpet in a Hollywood bar one crazy night long ago. But behind every elder statesman was a wild and woolly youth, as documented in this 1970 classic, an album that oozes peace, love, brown rice, shaggy hair, exotic aromas and trippy visions.

Tony Roberts and Jimmy Jewell take garrulous sax solos, Daryl Runswick does his solo double-bass thing, and Henry switches from trumpet to violin, just as he advised Miles to do that Californian night. But most of the time the beat slows into a mellow interlude of laid-back percussion, interminable one-chord vamps and notes that hang in the perfumed air. I don’t what their grandchildren will make of this music, but I’m sure its surviving participants will recall it with nothing but dazed happiness.