He has collaborated with IRCAM as a lecturer for seminars and as compositional coordinator for their 1996 four week summer course. Besides his compositional and pedagogical activities, he has collaborated with computer scientists and music psychologists to develop tools for computer assisted composition and in music perception research. He has worked with performing ensembles as artistic director for recordings of many European ensembles and soloists, and during the 1999–2000 season directed both Speculum Musicae and the Columbia Sinfonietta. Fineberg edited two issues of "The Contemporary Music Review" on "Spectral Music" (Vol. 19 pt. 2 & 3). From 2003 to 2009 he served as the US editor of the "Contemporary Music Review".