This is a most desirable disc. Even more than his orchestral works or songs, the piano works of Charles Ives demonstrate the extraordinary and compelling originality of a composer who was truly ahead of his time. For instance, not allowing convention or practicality to constrict his creativity in the Piano Sonata No. 2 (Concord Mass., 1840-1860), Ives includes a part of flute and a couple of bars for viola as well as large clusters to be played by a board. Such an approach seems more akin to experimental works of the Sixties rather than a piece completed in 1912.