Song, Delta Air Lines’ low-fare air service, is celebrating 50 Years of Rock ‘N Roll with a promotion designed to reward customers with music premiums such as iTunes downloads and iPod minis. Customers who purchase roundtrip tickets on flysong.com between Aug. 1 and 12, 2004 for travel Sept. 7 through Oct. 6, 2004, will be awarded one of three gifts: 100 free song downloads from the iTunes Music Store (for customers who book one roundtrip flight); one Epiphone Les Paul Junior Guitar from Gibson (for customers who book two roundtrip flights in the same itinerary); and one Apple iPod mini (for three roundtrip flights booked in the same itinerary).