I suppose any note, no matter how sour, sounds like a song if you hold onto it long enough.
Dewitt BodeenRory Breaker: If the milk turns out to be sour, I ain't the kinda pussy to drink it.
Lock, Stock and Two Smoking Barrels[talking about pink lemonade] The Baroness: Not too sweet, not too sour. Max: Just too, uh... pink.
The Sound of Music