[2] He has played with Woody Herman, Frank Sinatra, and Jaco Pastorius, among many over a career spanning more than four decades.
degree from the State University of New York at Fredonia He received his Master of Music (M.M.).
Keller has studied under Joe Allard, David Liebman, Pat LaBarbera, and Bob Mover among others.
[3] numerous national and international recordings, television shows, Broadway pit orchestras.
[7] He lectures and teaches at schools around the world, and has been an Artist in Residence at the Johannes Gutenberg-Universität, Mainz and has taught and performed at the Thomas Jefferson Institute, the University of Brasília, Brasília, Brazil, and the IASJ Summer Workshop at the Souza Lima Conservatory in São Paulo, Brazil, among others.