Ok, here you go. Not sure how easy or hard these will be, although Cozmo will know several.
Top to bottom - A to D
Left to right - 1 to 4
A1
A2: Crazy Lixx - New Religion (Zydar)
A3: Whitesnake - Saints and Sinners (Lowdz)
A4: Van Halen - Fair Warning (Zydar)
B1
B2
B3
B4: Nelson - Lightning Strikes Twice (Lowdz)
C1
C2
C3: Dio - Lock Up The Wolves (Mladen)
C4: Rhapsody of Fire - The Frozen Tears of Angels (Zydar)
D1
D2: Ozzy Osbourne - Ozzmosis (Zydar)
D3: Bruce Kulick - BK3 (Lowdz)
D4: David Lee Roth - A Little Ain't Enough (GuitarCozmo)