Plenty of indie, hip hop, and pop artists have welcomed others to remix their songs online. Now classical music aficionados can get in on the act. Renowned cellist and 15-time Grammy winner Yo-Yo Ma is hosting an online competition, inviting listeners to add their own accompaniment to his performance of the traditional hymn Dona Nobis Pacem, from his latest album, Songs of Joy & Peace. 125,000 had already participated by the date of this WIRED magazine article of December 22, 2008.