Berlyne's theory of aesthetic response was tested in an ecologically v
alid setting by playing music in a university cafeteria. Four music co
nditions were employed representing low, high, and moderate complexity
new age music, and moderate complexity mechanical organ music. Respon
se measures were how readily diners cited the music as an aspect of th
e environment which they might like to change, and how much they liked
the music. Liking for the new age extracts was consistent with Berlyn
e's theory, although liking for the moderate complexity mechanical org
an music indicated that factors other than complexity may also determi
ne musical preference. As dislike became more extreme, music became mo
re salient as a feature of the environment that subjects might like to
change.