Listeners might quibble over whether the 100 pieces collected here constitute precisely THE most relaxing classical music in the whole universe, but it can't be denied that this music is in fact mellow and relaxing, except for perhaps the Prelude to Wagner's Tristan und Isolde, which might get the blood pumping at its climax. The pieces are all instrumental and the tracks are weighted toward orchestral music of the Baroque, Romantic, and post-Romantic periods, although the Classical and Modern periods aren't entirely neglected, and there is some chamber music and keyboard music. The performers tend not to be the most renowned, but the performances are entirely respectable and the sound quality is good. The album should appeal to listeners looking for a broad assortment of quietly lyrical pieces.