Xbox 360 owners can today march play along to a different tune, as new Rock Band 2 and Guitar Hero World Tour tracks are now available through the Xbox Live Maretplace.

Rock Band 2
• Snow Patrol - "Take Back the City"
• Deep Purple - "Space Truckin'"
• James Gang - "Funk #49"
• Jethro Tull - "Hymn 43"
Guitar Hero World Tour - European Track Pack 2
• Backyard Babies (Swedish) - "Degenerated"
• Fito Y Fitipaldis (Spanish) - "Por La Boca Vive El Pez"
• Di-Rect (Dutch) - "Johnny"

As is normal, each downloadable song sells individually for 160 Microsoft Points ($2). The European Track Pack 2 for Guitar Hero is also available in a 440 MS Point bundle, which translates to $5.50--a savings of $0.50 over buying each track separately.

PlayStation 3 owners are expected to receive the above tracks on Thursday, January 8, as Sony is taking a seasonal two-week break from PlayStation Store updates.

While Harmonix has yet to say what's next for Rock Band and Rock Band 2 owners, publisher Activision has already announced Guitar Hero's January DLC schedule, including country tracks, Wolfmother, and a full Oasis album.