Wouldn't be the first time I've smelled gasoline at a concert.
Man Builds And Plays A Gas Powered Guitar

This is a video of Youtuber Mattias Krantz building and playing what is allegedly the world’s first gas-powered guitar. Move over, electricity, this guitar runs on hydrocarbons! The result is actually a lot cooler looking than it sounds, which is like the lovechild of an electric guitar and leaf blower. Also, whatever you do, don’t play thing thing during band practice with the garage door closed.