У вашего броузера проблема в совместимости с HTML5
Music:
Dropped the E String - Rock/Alternative - Royalty Free Music
Things Escalate Quickly - Rock/Heavy Metal - Royalty Free Music
Angry Angus - Alternative Metal - Royalty Free Music
Basic Rock Anthem - Royalty Free Music
Psychoanalysis - Heavy Metal/Alternative Metal - Royalty Free Music