I'm currently writing a one-shot involving multiple male musicians between the ages of 20 to 22 vying for one girl's hand. They are discussing which instrument is the "sexiest" of them all. Thus, I am looking for phrases that people say when referring to a musician's abilities that could also be sexual innuendos. I'm also looking for reasons why the instrument itself would be considered 'sexy'. Implications of an instrument's shape, the way a musician holds the instrument, etc. are also within my scope of interest.
The only instrument I'm familiar with is the flute, so here's an example of what I'm looking for: Flautists know how to tongue, finger, and blow.
The instruments I'm specifically looking for help on are the violin, cello, flute (could always use more), trumpet, and piano. Info on other instruments just adds fuel to the fire.
I tried Googling "sexual metaphors musical instruments" "musicians do it" "sexy instruments phrases", and other variations. However, I know that these phrases are more likely to be passed around a band room rather than recorded for posterity.
Thank you in advance to everyone who offered suggestions. I very much appreciate it.