Black Sabbath may have given fairies some heavy-metal street cred when it released “Fairies Wear Boots” in 1970, but Denver’s Dreadnought lends the whimsical creatures more credence in its music.

If you go out, be safe, be cool. Ceremony, Hotline TNT, Romeo Blu, Body Shop: Few bands in the indie world have been as notably defiant of genre as shapeshifting punk refugees Ceremony. This ...