[2] He has performed solo and in a number of ensembles since that time, including Brave Old World, Kapelye, Khevrisa, The Brothers Nazaroff, Voices of Ashkenaz and The An-Sky Ensemble,[3] and has collaborated with clarinetist David Krakauer, hip-hop artist Socalled, singer/songwriter/actor Daniel Kahn, bandurist Julian Kytasty, violinist Itzhak Perlman, ethnomusicologist and musician Walter Zev Feldman, trumpeter/composer Frank London and numerous others.
[6][7] In addition to performance and teaching, Alpert has travelled throughout Eastern Europe, the Americas, Australia and Israel/Palestine conducting ethnographic research and documentation of Jewish and other traditional musicians and singers.
Mark Slobin) on Warsaw-born klezmer drummer Ben Bazyler (1922-1990), and Jewish Instrumental Folk Music: The Collections and Writings of Moshe Beregovski (Moisei Beregovsky), translated and edited by Alpert, Mark Slobin and Robert Rothstein (Syracuse University Press, 2001).
As a teenager in the early 1970's, Alpert lived in Yugoslavia, researching traditional music and dance and learning the languages of the western Balkans, particularly the former Serbo-Croatian and Macedonian.
[citation needed] Alpert was musical director of the 1995 PBS Great Performances special Itzhak Perlman: In the Fiddler's House (1996 Emmy Award for Outstanding Cultural Music-Dance Program and Golden Rose (Montreux) for same) and co-producer of the two Perlman klezmer CDs on the Angel Records/EMI label.