iTunes remained the digital music brand of which consumers are most aware in 2007, according to results from the fourth annual TEMPO Digital Music Brandscape study, an in-depth examination of fee-based online music brands from global marketing research firm Ipsos Insight. Results show 82% of U.S. downloaders, both fee-based users and file sharers, are now aware of iTunes, with 38% of those thinking of the brand on a top-of-mind basis. “It has become…