Go to Archives, then to Music to purchase background music from different areas of the Arenas. You can listen to your purchased music here as well.
Panel A1 - Arkham Asylum Cell Block - One Access Card to unlock
Panel A2 - Arkham Asylum Mess Hall - One Access Card to unlock
Panel A3 - Atlantis Throne Room - One Access Card to unlock
Panel A4 - Atlantis Throne Room Alternate - One Access Card to unlock
Panel A5 - Batcave Crime Lab - One Access Card to unlock
Panel A6 - Batcave Lagoon - One Access Card to unlock
Panel A7 - Ferris Aircraft Hangar - One Access Card to unlock
Panel B1 - Fortress of Solitude Laboratory - One Access Card to unlock
Panel B2 - Fortress of Solitude Menagarie - One Access Card to unlock
Panel B3 - Gotham City Rooftop - One Access Card to unlock
Panel B4 - Gotham City Alley - One Access Card to unlock
Panel B5 - Hall of Justice Plaza - One Access Card to unlock
Panel B6 - Hall of Justice Great Hall - One Access Card to unlock
Panel B7 - Insurgency Command Center - One Access Card to unlock
Panel C1 - Insurgency Luthor's Lab - One Access Card to unlock
Panel C2 - Metropolis Street - One Access Card to unlock
Panel C3 - Metropolis Rooftop - One Access Card to unlock
Panel C4 - Metropolis Museum - One Access Card to unlock
Panel C5 - Stryker's Island Cell Block - One Access Card to unlock
Panel C6 - Stryker's Island Yard - One Access Card to unlock
Panel C7 - Themyscira Temple - One Access Card to unlock
Panel D1 - Themyscira Port - One Access Card to unlock
Panel D2 - Watchtower Bridge - One Access Card to unlock
Panel D3 - Watchtower Reactor - One Access Card to unlock
Panel D4 - Wayne Manor Entrance - One Access Card to unlock
Panel D5 - Wayne Manor Great Room - One Access Card to unlock