Allan Vache was graduated from Roosevelt Elementary School, Rahway Junior High School, and Rahway High School, Rahway, New Jersey 1959-1971. He also attended Jersey City State College, Jersey City, New Jersey 1971-1975. At this time he studied with David Dworkin of the Metropolitan Opera Orchestra, and independently with famed jazz artist Kenny Davern.
From 1972-1975 Allan also performed many professional engagements with such jazz greats as Bobby Hackett, Wild Bill Davison, Pee Wee Erwin, Gene Krupa, Dick Hyman, Max Kaminsky, Clark Terry, Dick Wellstood, Ed Hubble, Cliff Leeman, Bob Haggart, Jack Lesberg, and many others. He also made numerous appearances with his brother, famed jazz cornetist Warren Vache, Jr. From 1974-1975 Allan appeared in the Broadway musical Doctor Jazz at the Winter Garden theater, starring Bobby Van and Lola Falana. He performed with a band that appeared onstage, and Luther Henderson and Dick Hyman wrote instrumental arrangements.
In late 1975 Allan joined The Jim Cullum Jazz Band of San Antonio, Texas, formerly The Happy Jazz Band. He traveled extensively with this band to Europe, Australia, and Mexico, as well as to many concert and festival appearances throughout the U.S. He has recorded nine albums and compact discs with this band, including the only jazz CD of the entire score of Gershwin’s Porgy and Bess, released on CBS Masterworks records. Concerts of Porgy & Bess, many featuring opera great William Warfield as narrator, were performed by Vache and the band throughout the Western hemisphere, including The Kennedy Center in Washington D.C., and The Cervantino Arts Festival in Mexico City, for the U.S. State Department.