1.   Because I live in Phoenix, Arizona, the Valley of the Sun and the home of retread rock radio.

2.   All have become staples of classic rock radio and were conceived and sung by CCR main man John Fogerty.

3.   But it has begun to sound commonplace, leading listeners to ask what exactly is modern rock radio an alternative to?

4.   Commercial rock radio, eclectic if sometimes amateurish in its early days, has been divided into rigid niches for more than a generation.

5.   It got a rebirth on modern rock radio last last year, with WBCN-FM and WFNX-FM picking it up and playing it extensively in Boston.

6.   It was the rave of college campuses and alternative rock radio.

7.   It runs against the grain of contemporary rock radio, but despite its glitches, shows a band still breathing plenty of life.

8.   KDKB-FM promotions people judged the kiss-a-thon, and their nearby truck provided continuous rock radio.

9.   Meanwhile, as rock radio becomes even more tightly programmed, Nielsen worries that the chances for exposure have diminished greatly.

10.   Modern rock radio, she says, is too homogenized.