Board Thread:Questions and Answers/@comment-201.224.132.166-20140103160000/@comment-6697950-20140103160821

Most of them sounded like the soundtrack used in season 1. Try http://swordartonline.wikia.com/wiki/Sword_Art_Online_Original_Soundtrack_vol.1 (with samples of each one) http://swordartonline.wikia.com/wiki/Sword_Art_Online_Original_Soundtrack_vol.2 (no samples yet)