It seems like people have mixed opinions on this. Some think it works because of the Nero fiddling while Rome burns thing, while others don't think it really fits the Pyro and that it should go to Medic instead. Both things make since to me, so I'm not really sure about this, but I will say this:

What might work better for the Pyro is playing something like a little Bell set (The "Glockenspiel" if you're feeling fancy) or some other mallet percussion instrument. It fits with the Pyroland stuff.