Possible Clues:

• Male in charge introducing US blues, for example
• '''If ... be the food of love, play on'' (Twelfth Night) (5)'
• The food of love gets the amount up, I see
• Incidentally heard in film
• Airs, perhaps
• Identical
• If - be the food of love, play on (Twelfth Night)
• 'I'd like to see a Tank come down the stalls, - Lurching to - tunes' (Siegfried Sassoon)
• Notes type of key used to open such bars
• Artistic form of auditory communication