The New York Times added, "When the ensemble, led by Mr. Liberman, delivers the show’s final number, 'Answer Me,' the music takes on a transcendent harmonic shimmer that stops the heart."
[15][7][16][17][18][19][20] Liberman "perfectly portrayed" Clopin Trouillefou in the world premiere of Disney's The Hunchback of Notre Dame with music and lyrics by Alan Menken and Stephen Schwartz, respectively.
He appeared in concert stagings of Stravinsky's L'Histoire du Soldat, The Who's Tommy, and Carol Burnett's Hollywood Arms with Tyne Daly, and provided choreography for Mabou Mines Dollhouse, which played Off-Broadway twice, toured the world, and was filmed for television.
[2][52][53][54][55][56][57][58] Liberman contributed to books including Luminous Life: How the Science of Light Unlocks the Art of Living and Wisdom from an Empty Mind, both with his father, and Performance of the Century, celebrating the Actors Equity centennial.
[59][60][56][61][62][3][63][64][65] In 2020, Liberman launched Bridge to Broadway, an online educational platform connecting master teachers with theatre students, benefiting The Entertainment Community Fund and other charities.
Guest artists included Chita Rivera, Joel Grey, Alan Menken, Judith Light, Ali Stroker, Ben Vereen, Lea Salonga, and André de Shields.
Liberman is a recipient of Encore, Helen Hayes, Ovation, Garland, Connecticut Critics Circle and New York Musical Theatre Festival Awards.