As a collaborative pianist, Arlene has collaborated with Renée Fleming, Thomas Hampson, Angela Meade, Isabel Leonard, Carla Rae Cook, Michael Fabiano, Anton Belov, Alissa Deeter, and Takaoki Onishi.
She regularly serves as official pianist and judge for international opera competitions sponsored by The Gerda Lissner Foundation, the Licia Albanese Puccini Foundation, The Giulio Gari Foundation, The Loren Zachary Society, The Marcello Giordani Foundation, and the Fritz and Lavinia Jensen Foundation.
While many of Arlene's professional activities focus on collaborations with singers, she is in demand with instrumentalists as well, featuring engagements such as her NYC debut with the Yoav Chamber Ensemble, touring with the Grand'Arte Trio, and as a finalist in the Munich International Competition in the violin-piano duo category with Julie Rosenfeld of the Colorado String Quartet, as well as winning the outstanding pianist award at the Music Academy of the West. In January 2014 Arlene teamed with pianist Anna Shelest in a 4-hand version of the Brahms Requiem with Voices of Ascension, under the baton of Dennis Keene, featuring soloists Martha Guth and Richard Zeller. Arlene has recorded for Dorian, Albany, Summit, Centaur, and Orion labels. Her discography includes works from the classical canon and recording premieres by contemporary composers.