[1] After studying liberal arts - including percussion lessons - at Washington University in St. Louis,[1] he trained at the Juilliard School.

[5] Haas performed the world premiere of the concerto on November 19, 2000, at New York's Lincoln Center with Svetoslav Stoyanovby and the American Symphony Orchestra conducted by Leon Botstein.

[5] He has performed national premieres of the work and recorded it in 2004 with Evelyn Glennie and the Royal Liverpool Philharmonic Orchestra conducted by Gerard Schwarz as part of Glass' Concerto Project.

Haas is the soloist on all three pieces on the Sunset Records' CD 18th Century Concertos for Timpani and Orchestra: These were made with the Bournemouth Sinfonietta, conducted by Harold Farberman and released in 2002.

He is also the owner of Gemini Music Productions, contracting musicians for the New York Pops,[1] Mostly Mozart Festival, All-Star Orchestra, Westchester Philharmonic, and others.