Each one a solo artist of distinction, Van Raat and Pinkham join up to make beautiful music together. They will play two-piano pieces by a range of composers: Chick Corea’s “Duet for Two Pianos in Three Parts,” George Gershwin’s “I Got Rhythm Variations,” Vanessa Lann’s “Second Nature,” Frederic Rzewski’s “Winnsboro Cotton Mill Blues,” and William Bolcom’s “Recuerdos,” among others.