Muzak and Music Retailing
To my ear, however, the trend is away from a Muzak-type service and toward what Starbucks has done with Hear music. Traditionally, companies have spent far more time and effort developing a visual identity than an aural identity. That's beginning to change, as automobile manufacturers have discovered that rock n' roll sells cars, and retailers increasingly begin to develop and package "their" sound.
Brick-and-mortar record stores continue to experience the pain of disintermediation, while lifestyle retailers (coffee, clothing, etc.), begin to add CDs as a new line of merchandise. Interesting times.