Peter J. Warshaw is the Fine Arts Director for the Leander Independent School District. Previously, Mr. Warshaw has served as the Coordinator of Fine Arts for the Bryan Independent School District in the Bryan ISD, as well as the Director of Bands at J. J. Pearce High School in the Richardson ISD. During his tenure at Pearce High School, the band performed twice by invitation in New York's Carnegie Hall and was awarded the Sudler Flag of Honor in 2000, becoming only the 2nd high school band program in the United States to have received two flags. In 2001, the Symphonic I Band, under Mr. Warshaw's direction, was selected as the Texas Music Educators Association Class 4A Honor Band.

His marching and concert bands have consistently earned first division ratings in UIL competition and have been named as Best-In-Class at festivals in Corpus Christi, Galveston, Dallas, Orlando, Florida, and San Diego, California. Additionally, the Pearce marching band received numerous Best-In-Class awards and was well-known for its innovative and unique programming.

Mr. Warshaw's professional affiliations include the Texas Music Educators Association, the Texas Bandmasters Association, the Texas Music Adjudicators Association, and the Texas Music Administrators Conference. He is a member of Phi Beta Mu, a life member of the International Percy Grainger Society and is listed in the 1992 and 1996 editions of Who's Who Among America's Teachers. In addition, Mr. Warshaw is a recipient of the Grainger Medallion from the International Percy Grainger Society in recognition of his distinctive contribution to the music of Percy Grainger. He has served a guest lecturer in music education at Sam Houston State University in Huntsville, Texas and is in great demand as an adjudicator throughout the state.