I play keyboard in a heavy metal/screamo band, and I need some good songs or bands that have good keyboard parts to get some ideas from.
Children of Bodom Sonata Arctica Dimmu Borgir Ensiferum Moonsorrow
First few that came to mind.
Not heavy metal, but Nine Inch Nails has awesome keyboarding by Trent Reznor.
Cradle of Filth,Einherjer,Moonsorrow and Sirenia are some good ones
Children of bodom