Federico Mompou and Robert Schumann We listen in on the encores from two piano performances. First, Orion Weiss plays the Song and Dance No. 7 by Federico Mompou at the Sanibel Island Music Festival in Florida. Then Jonathan Biss gently persuades the audience to let him go in Scottsdale, Arizona with Robert Schumann's Nachtstucke, Op. 23, No. 4.