SOURCE: FOOL.com Yahoo! Tunes In to Musicmatch By Dave Marino-Nachison September 15, 2004 Close watchers of the online music business no doubt noted yesterday's announcement of Yahoo!'s (Nasdaq: YHOO) purchase of Musicmatch with interest. The portal giant, according to a press release, agreed to buy the digital jukebox player company for $160 million in cash. The deal, though it doesn't necessarily upset the apple cart in the sector, is certainly an interesting one. In Musicm...