Here's how to play bits of Bohemian Rhapsody by some bloke that know's what he's doing.
I have the same Vox Mini 5 Amp (takes 6 AA batteries (as well as mains) if you need to annoy people in caves with some types of metal), except I'm deluding myself with a massive lack of talent, but it still sounds very nice and is very reasonably priced. So the tenuous link to the equipment etc. section.

https://www.youtube.com/watch?v=pesT_u_N2tk