Amen & Attack Powerwolf | Format: MP3 Music, http://www.amazon.com/dp/B00DFN1ECM/ref=cm_sw_r_pi_dp_tz81rb0QBKZNS
Powerwolf came out of nowhere for me! Power metal to the core these guys. The lead singer was trying out of opera if that lets you in on anything.
Powerwolf, wolf by vermaledeyt.deviantart.com on @DeviantArt
Looks freaky as hell but great songs
Powerwolf - Blessed & Possessed
Keep calm and listen Powerwolf
Piano keys labeled with scientific pitch notation and note frequencies
memorizing this is literally how I learned to play actual music on the piano.