[citation needed] On the recommendation of Donald Pippin, he was hired by Michael Bennett and Marvin Hamlisch as music director for the International Touring Co. productions of A Chorus Line and They're Playing Our Song.
[citation needed] Several other productions followed, including Evita, Sugar Babies, La Cage Aux Folles, The Phantom of the Opera, Teddy and Alice, Onward Victoria, Copperfield,[2] and Colette.
[citation needed] In 2002, he was asked to conduct Sweeney Todd for the Kennedy Center Sondheim Celebration, as well as a subsequent production for Wolf Trap Opera.
[citation needed] Blank was the musical director for Katie Couric's Hollywood Hits Broadway and her fund-raising tribute to West Side Story.
[citation needed] Blank has been nominated for a Tony Award three times, for his orchestrations of Catch Me If You Can (with Marc Shaiman),[6] White Christmas, and The Drowsy Chaperone.
Blank's orchestration of eight songs for the Broadway production of The Producers was acknowledged by Doug Besterman and Mel Brooks at the 2001 Tony Awards after the show won Best Original Score.