 In the early 1990s, while working at NeXT, he was key in the development of the world's first digital library, creating digital versions of Shakespeare and other classics.From 1993-2002, he was on the faculty at MIT as the Dreyfoos chair, and from there he became Director of Special Projects at MIT's Media Laboratory.Musical work from this period appeared on a CD, "Computing Systems Usenix Music," distributed as a supplement to the journal Computing Systems.