Crossword Genius

Music storage medium playing on air gets inside head (5,4)

Ross

I believe the answer is:

piano roll

'music storage medium' is the definition.

'playing on air gets inside head' is the wordplay.
'playing' indicates anagramming the letters.
'gets inside' means one lot of letters goes inside another.
'head' becomes 'poll' (poll is a now rare word for head or scalp**).
'on'+'air'='onair'
'onair' anagrammed gives 'ianor'.
'ianor' placed into 'poll' is 'PIANO ROLL'.

(Another definition for piano roll that I've seen is " Form of recorded music".)

I've seen this clue in The Guardian.
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