Instruct: Classify a review as either positive or negative.
Query: Sounds of Wellness

Oliveros et al. conceived a way to perform natural drone music, thus imaginatively naturalizing (i.e. making acoustic) ambient music. This music, serene, whale-song-like yet searching, is the emboodiment of a desire to interweave attenuated pitches into a meditative whole. Dempster's trombone, as odd as it might seem at first, makes an outstanding contribution to the agenda. This is music at the service of contemplation.