I thought this quote paints an interesting future:
We’re entering a fourth stage in popular music, from (1) pre-rock pop’s distinction between songwriter and performer (think Elvis, the Brill Building system), to (2) rock’s emphasis on musicians writing their own material, to (3) hip-hop’s re-use of existing sonic material, to (4) the current age of audio-games, in which users experience sound by manipulating it — not just with the iPod, but also with games like Rock Band, DJ Hero, and Guitar Hero, and with the audio tools built into the Nintendo DSi, just to name a few examples. (There are similar factors at work in underground and academic music and art cultures, but the focus for me here is on mobile music-making apps, which are significant because of their popularity, because they have made populist numerous activities and approaches to creativity that were previously considered specialized, abstract, experimental, even avant-garde.)