Tune gets processed and made cool (14)

'made cool' is the definition.
The definition suggests a past participle verb which matches the answer.

'tune gets processed' is the wordplay.
I cannot quite see how this works, but
'tune' could be 'air' (air can mean a piece of music) and 'air' is located in the answer.
The remaining letters 'conditioned' is a valid word which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).

'and' is the link.

Can you help me to learn more?