David Saslav has been Tenor soloist, associate cantor, and assistant choir director to Rebecca Maggi at Saint Mark's Episcopal Church in Palo Alto since Easter 2010, when he appeared as quartet soloist in Mozart's Regina Coeli. He has performed and directed several times there since, and his solo and vocal compositions have been performed there, as well as at previous ecumenical postings, such as St. Francis Lutheran Church in San Francisco and The Swedenborgian Church of San Francisco, 
He can be heard singing at the Saint Mark's 10AM service every Sunday morning from September through July; every Easter at the Early Morning Vigil service starting at 5:30AM; and Christmas Eve service starting at 10:30PM.
Some of David's solos and choral offerings at Saint Mark's can be found on his YouTube channel.