The unconventional instrumentation favoured by Tortoise is an indicator of how many different lineups have always jostled for space under the jazz umbrella. The national treasure that is The Pete Alle

Sleeper agents: Andwellas Dream (from left) Nigel Smith, ...

The prog giants’ much maligned and misunderstood 1973 concept album reappears in deluxe expanded and enhanced form. Mark Blake braves a deep dive.

Ex-Tangerine Dreamer returns with evolution of his emotional ‘guitartronica’.

LESTER COHEN / GETTY Lazarus: The Second Coming ...

The Ten Years After bassist survived Hamburg’s Star-Club, sparked the blues boom, achieved immortality at Woodstock – and is still going strong at 82. “Music,” he says, “it’s a drug…”