Alkan's gargatuan Op. 39 Etudes embody a symphony (Etudes 4-7), a solo concertos (Etudes 8-10), an overture (No. 11), and a riotous set of 25 variations depicting the animals of Aesop's fables (No. 12, La festin d'Esope). The music demands boundless technique and stamina, which Jack Gibbons supplies in spades. He dives headfirst into the treacherous writing, letting the chips fall where they may. One can't really top Marc-Andre Hamelin's unflappable proficiency in the concertos, yet Gibbons rougher, leonine demeanor thrusts Alkan's Dionysiac qualities more to the fore. Bet you can't digest this yummy 12-plus course piano feast all in one sitting! --Dan Davis