You can perform songs in a fraction of the normal time.
Performing a quickened song is a swift action. You can perform another action, even performing another song, in the same round as you perform a quickened song. Performing a quickened song doesn’t provoke an attack of opportunity.
MP Increase: +4 (a quickened song costs 4 additional MP more than the actual MP cost of the song.) In addition, the perform check DC increases by +4.