Clear Channel Communications ... is formulating a business plan that will allow listeners to buy and download tunes from their favorite radio stations. With the popularity of downloading music and the increased interest in satellite radio, broadcasters have little choice but to adapt. ¶ Traditional-radio broadcasters are facing a slowdown in advertising sales as their listening audience declines. Instead of tuning in to FM radio stations, music fans can listen to their favorite tunes on digital music players such as Apple's ... iPod, and more are switching to the commercial-free satellite radio services, XM Satellite Radio ... and Sirius ..., that broadcast in high fidelity. ¶ To counter this new listening revolution, Clear Channel has employed iBiquity Digital to convert most of its 1,200 radio stations to digital high-definition (HD) radio, a new format. ... Link: Fool.com.