They're jokes, LL, just jokes. Musicians have been deriding each other since cave man days.

Seen on a cave wall:

Grunt....grunt ....flute.

I got your....grunt....flute right here.

Please...it's not necessary to provide links for Tommy Dorsey and and Art Van Damme. Given the normal rate of decomposition, Dorsey is definitely not laughing. I'm surprised about Krupa, though. He must use a ton of deodorant. As far as I know, Art is still alive. I'll ask him when I see him.