2. I gotta feeling

base a 80bpm:
http://www.supload.com/listen?s=qnOxYl
base a 120bpm:
http://www.supload.com/listen?s=DyhrBX

Parts individuals:

http://www.supload.com/listen?s=elKPfh (guitarra acords oberts)

http://www.supload.com/listen?s=pwewCg (guitarra acords quintes)

http://www.supload.com/listen?s=0Lcp8m (guitarra riff)

http://www.supload.com/listen?s=8AaLcK (melòdica)

http://www.supload.com/listen?s=hrs6T7 (metalòfon)