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All Music Guide:
A superior bassist, Jay Leonhart has also had a parallel and sometimes overlapping career as a witty lyricist and occasional singer. As a child he attended the Peabody Conservatory (1946-1950), and by the time he went to the Berklee College of Music (1959-1961), he was a jazz musician. He played with Buddy Morrow (1961) and Mike Longo (1962-1963), and then became a busy freelance musician in New York. Among Leonhardt's many associations were Marian McPartland (with whom he recorded in 1971), Jim Hall, Urbie Green, Chuck Wayne (1976), Phil Woods, Gerry Mulligan, Lee Konitz, Don Sebesky, Louie Bellson, and pianist Mike Renzi. Leonhart started becoming well-known as a lyricist in the '80s when he began leading his own recording sessions and started having his songs recorded by other singers. As a leader, Jay Leonhart has recorded for DMP (1983), Sunnyside (1984 and 1988), Nesak (1990), and DRG (1993).
Jay Leonhart (born December 6, 1940, Baltimore, Maryland) is a noted bassist and songwriter working in jazz and popular music. He has performed with diverse artists including Judy Garland, Carly Simon, Bucky Pizzarelli, Sting, and Frank Sinatra. Leonhart is noted for his clever songwriting often laced with dry humor, and his compositions have been recorded by such notable artists as Blossom Dearie, Lee Konitz and Gary Burton. Leonhart's poetry is published both in, and outside of, the venue of song.
Jay Leonhart grew up in a musical family. His parents and six siblings were all musically inclined. Everyone played the piano. By the age of seven, Jay and his older brother Bil were playing banjos and guitars and mandolins and basses. They played country music, jazz—anything with a beat. In their early teens, Jay and Bil were television stars in Baltimore and were touring the country performing on their banjos.
When Jay was fourteen he started playing the bass in The Pier Five Dixieland Jazz Band in Baltimore. After studying at The Peabody Institute (1946–1950), Jay attended The Berklee College of Music (1959–1961) and The Advanced School of Contemporary Music in Toronto, before leaving school to start touring with the traveling big bands of the late 1950s and early 1960s.
At twenty one, Leonhart moved to New York City to start his career. He played lots of funky road gigs with big bands, small bands and singers and visited many little jazz joints around the world. In 1968, he met and married a singer named Donna Zier and settled down in New York. Jay and Donna Leonhart have two children, Michael and Carolyn, who have performed with Steely Dan, among others.
Upon moving to New York, Jay eventually began playing for many of the great jazz musicians, big bands, and singers who were to be found there - artists like Thad Jones and Mel Lewis, Lou Marini, Tony Bennett, Marian McPartland, and Jim Hall. Leonhart has continued to work with many of the great jazz musicians of the twentieth century.
Jay also became a very busy studio musician in New York City, visiting every musical genre from James Taylor to Ozzy Osbourne and Queen Latifah. Between 1975 and 1995 he was named The Most Valuable Bassist in the recording industry three times by the National Academy of Recording Arts and Sciences.
Jay Leonhart has now recorded fifteen solo albums and is also performing a one-man show called "The Bass Lesson" about his life in the music business and song. He has toured worldwide for more than forty years.
Jay now performs regularly with trombonist Wycliffe Gordon in a duo which began as a result of their recording "This Rhythm on My Mind".
Select discography 
With Bucky PizzarelliFive For Freddie (Arbors Records)Skitch Henderson & Bucky Pizzarelli: Legends (Arbors Records)
With Daryl ShermanGuess Who's In Town (Arbors Records)
With Donnie O'BrienDonnie O´Brien Meets Manhattan Swing: In a Basie Mood (Arbors Records)
With Mike RenziSalamander Pie (DMP Digital Music Products)
With Bluesiana TriangleBluesiana TriangleBluesiana Triangle II