A gem among gems

It doesn't matter how many times I see "The Naked Gun", it's never anything less than brilliant. I caught a few minutes today and totally lost it on a line I don't recall ever noticing before.

FRANK DREBIN
Ah, how I loved her, but she had her music.
(pause)
At least, I think she had her music. She hung out with the
Chicago Male Chorus and Symphony. I don't recall
her playing an instrument or being able to carry a tune.
Yet she was on the road 300 days of the year. In fact I
bought her a harp for Christmas. She asked me what it was.