"Blackout" Piano, drum and bass
"Burning In The Skies" Piano, drum, bass, guitar
"The Catalyst" Piano, drum, bass, guitar
"The Messenger" Piano, guitar
"Waiting For The End" Piano, drum, bass, guitar
"Wretches And Kings" Drum, bass, guitar
most of them have piano, that's why they are putting song like that. Now they got piano on guitar hero.