Paper Mario Game Music Soundtrack CD
From the Super Mario Wiki
Paper Mario Game Music Soundtrack CD contains the original music from Paper Mario. This item is copyrighted in 2001 and published by Nintendo and Intelligent Systems. It was given out as a bonus gift from subscribing to Nintendo Power limited from 2002-2003. The soundtrack holds seventy-eight songs from the game in two discs.
The whole soundtrack is composed by Yuka Tsujiyoko, stating that she used pieces of Mario music that originated from games like Super Mario Bros., Super Mario Bros. 3, and Super Mario World, and expanded them to make the theme music fit in the game.