So Apple’s getting into the music download business. At first look, “the integration between the one-click purchase service, Apple’s iTunes music jukebox software and the iPod player goes well beyond what any other music service has done. It will genuinely make paying for music online easy, even an impulse buy, and artists and music labels see that as a big step forward. Label executives privately say the Apple service is an experiment, which could be expanded if it proves successful. Apple’s small market share means that the stakes are relatively low.”