*Climbing the Charts*

The author is Gabriel Rossman and the subtitle is What Radio Airplay Tells Us About the Diffusion of Innovation.

In other words, there is lots of payola.  My blurb is:

Gabriel Rossman is the leading researcher in the sociology and economics of the music industry, and this book shows him at the top of his research and exposition powers.

You can buy it here.  Rossman blogs here, and he is on Twitter here.