1. 
2. [audio:01sep09q.mp3]
   (direct link to clip)

(1) composed (2) in 1902. It shot to fame much more recently when someone started using it, specifically the part that is muted out in the clip. What is (2) now more famous as?

Cracked by Goutham DL, shenoyvarun86, MKen_, achyuth, Dibyo, Divya, shrik, Manish Mani, Chinmaya U.Holla, Debasish, udupendra, AmK, Vardhan Shenoy, vardhans94, Rithwik K, sidsen, Rogi, Aditya, varuns88, satyeki, Hitesh T S, Logik, xtremevarun and abhijeet

shenoyvarun86 points out that he’d already asked this question (to which fact I shall claim ignorance :p). :-)