Geri Allen watches as Taylor Eigsti, Jason Moran and Ellis Marsalis, from left, perform in a round robin at A Jazz Piano Christmas 2012. Brendan Hoffman for NPR hide caption

itoggle caption Brendan Hoffman for NPR

Pianist Helen Sung is one of the many performers at the "Generations in Jazz" concert at Dizzy's Club Coca-Cola. Courtesy of the artist hide caption

itoggle caption Courtesy of the artist

Marian McPartland performs at Dizzy's Club Coca-Cola. Frank Stewart/Jazz at Lincoln Center hide caption

itoggle caption Frank Stewart/Jazz at Lincoln Center

John Pizzarelli performs with John Bunch at Dizzy's Club Coca-Cola. Frank Stewart/Jazz at Lincoln Center hide caption

itoggle caption Frank Stewart/Jazz at Lincoln Center

Led by the late Esbjorn Svensson, E.S.T. was one of the premier modern piano trios. Tobias Regell/Courtesy of the artist hide caption

itoggle caption Tobias Regell/Courtesy of the artist