Brian Eno's 1979 LP 'Music For Airports' launched the genre of 'Ambient Music'… an alternative to the dreadful 'muzak' inflicted on humans in most public spaces… music that reduced stress rather than added to it… music for contemplation that rewarded attention but did not require it. This episode takes that idea and rummages around classical music to see if there are works that might do the same… with thanks to Gavin Bryars, Erik Satie, Tomás Luis de Victoria, Phillip Glass, Richard Wagner, John Adams, Arvo Pärt and Gabriel Fauré.