Not only is our parakeet a sweetheart, he's also a very lovely singer. It's a tough call in a pet store; choosing a good-natured bird who hopefully will be nice company and sociable without being obnoxious, needy, and loud.
Blu's partial to violins (he listens to a lot of MPR) and also to whistling. The kids would love for him to start talking. I know that's fun but honestly a talking parakeet can be really annoying to listen to on repeat (for people like me whose ears can't tune anything out.)
He loves "The Whistling Caruso" so much that I've started leaving it on repeat for him while he's exercising in the school room.