Robert is married to Juliette ( Catherine Keener ) , the viola player of the group .
Meanwhile , the second violinist , Robert ( Philip Seymour Hoffman ) , voices his desire to alternate the first violinist role , long held by Daniel ( Mark Ivanir ) .
Robert is married to Juliette ( Catherine Keener ) , the viola player of the group .
Meanwhile , the second violinist , Robert ( Philip Seymour Hoffman ) , voices his desire to alternate the first violinist role , long held by Daniel ( Mark Ivanir ) .