The theme of this season's concerts is "Who Makes Music?," and the four concerts will focus on the roles of the various participants in the music making process. The series kicks off Nov. 5 at 2 PM with an examination of "The Composer," followed by "The Conductor" (Dec. 3), "The Orchestra" (Feb. 25, 2006) and "The Audience" (May 6). All of the concerts will be held at 2 PM at Lincoln Center's Avery Fisher Hall.

About the upcoming concerts, New York Philharmonic Director of Education Theodore Wiprud said in a statement, "This season the Young People's Concerts take on a new kind of excitement, with one concert leading to the next, and with the irrepressible John Tartaglia discovering how music works, right along with the audience. We are aiming to spark kids' imaginations on educational, musical and theatrical levels, and ignite a lifelong love of music."

Ernest Schelling founded the Young People's Concerts in 1924. The concerts became famous throughout the country in the 1950's and 60's when Leonard Bernstein conducted.

John Tartaglia made his Broadway debut in Avenue Q. He received a Tony nomination, a Theatre World Award and the Clarence Derwent Award for that performance. The singer-actor also appeared in the Children of Eden and Hair benefit concerts and in the City Center Encores! presentation of Carnival. His TV credits include eight seasons on "Sesame Street" as well as "Animal Jam," "Bear in the Big Blue House," "Queer Eye for the Straight Guy" and "The Rosie O'Donnell Show." Tartaglia was also seen in the Empty-Handed concerts at the Lucille Lortel Theatre and has performed solo evenings at the Ars Nova and Joe's Pub.

Tickets for the concert are priced $7-$26 or $24-$100 for the entire series. Call (212) 875-5656 for more information or visit www.nyphil.org.