Across
In refrain, trombone leads to start of music (5)
Head of conservatoire appearing again on radio, playing instrument (9)
Outlaws are sent legal IDs, lest these be discovered (9)
Boatman's Boatman, you say? I don't agree! (2,3)
Liable to have start of music replacing run in trumpet (2,5)
Arrive on a higher note? (5,2)
Get wrong note out with this instrument (5)
Unfashionable dance music causing muscle contraction (3)
Elgar composition for portable organ (5)
Get another instrument — there's a note missing (7)
Instrument's voice, even used with acoustic of large venue (7)
Notes written here in Home Counties about tax return (5)
Look after work containing tangle of Mexican fruit (9)
Race with turns that are slippery (6,3)
How to use veto to get leader from jesting with this instrument? (5)
Down
One shows little authenticity in sound of instrument (4)
Six-footer humming middle of sestet in key's first error (5,3)
Horse around on instrument (4)
Instrument is Spooner's orchestral nightmare (8)
Speculator, denying role in collapse, causes trouble (4,2)
They satisfy a burning need but their clients always arrive late (10)
Cutting-edge music, selling well with City hipsters at first (2-4)
Formerly connected with every other member’s disappearance (4)
Boatman is into rock (a follower of Yes?) with this instrument (5)
Changes in speech implied stopping reparation (10)
Originating perhaps overseas, like Kathak, as a dance (5)
Diverting to marina, which is in Sicily (8)
Questioning start of gig, with band assumed sick (8)
Ridiculous orange beast (6)
Three notes with bow out (6)
Instrument, but missing bag (4)
Join up as part of orchestra (4)
Instrument of empty honour (4)
Type letters or click words in the clue