It's always joyous to find things like this. It's nice to see someone mixing a little hip-hop with a Classical instrument...it gets more people into the instruments themselves. Would be great if everyone would just go out and learn to play the piano, violin, guitar or whack two sticks together and act as a metronome for all I care.
It relieves stress and God (or whatever) knows we all need to relieve some stress.
And we can't all have sex every 5 minutes. Can we? Nah that would eventually be tiring. Yay for rants on topic.