if stringed instruments were lovers, here’s my assessment of them: 

violin = deep, brooding, melancholy, prone to angry sex.
cello = effortless, virile, will follow you around with a hard-on most days.
guitar = laidback, worry-free, will definitely light a joint with you after sex.
harp = vacuous, apathetic, might oblige you with evangelical coitus twice yearly. 
ukelele = hoity toity, annoying, would pay you for sex.

of course there are others, like the mandolin, the banjo, etc. those can quite frankly have sex with themselves.