Earl Wild (November 26, 1915 – January 23, 2010) was one of the greatest pianists of the 20th century known for his transcriptions of jazz and classical music. With the extraordinary catholicity of his repertoire, his role as a pianist-composer and his charismatic stage presence, Wild came closer than most to being the complete virtuoso. It is hard to name another pianist who has been as successful in the works of such a diverse range of composers, from Dieterich Buxtehude, Bach and Mozart through to Paul Hindemith, Walter Piston, Aaron Copland, Gian Carlo Menotti and Paul Creston.

At 14, Wild was playing the piano and celesta in the Pittsburgh Symphony Orchestra under Otto Klemperer. Times were hard as he began his career during the Depression, but in 1937 he became a staff pianist with NBC and two years later, he became the first pianist to give a live solo recital on US television. (Remarkably, in March 1997, he also became the first pianist to give a live solo recital on the internet.)
In 1942 Wild was the first American-born musician to be invited by Arturo Toscanini to appear with him (in Gershwin's Rhapsody in Blue), making him the youngest soloist ever engaged by the NBC Symphony. The broadcast performance brought national fame overnight and led to Wild being typecast as a Gershwin specialist. He later composed a Grand Fantasy on Porgy and Bess and Seven Virtuoso Etudes based on Gershwin songs.
Here's "Mephisto Polka" from above album.
After serving in the US navy band during the second world war (he played the flute), Wild took a job as staff pianist, conductor and composer with NBC's rival ABC network. He retained the post until 1968. Between 1952 and 1956, he worked with the comedian Sid Caesar on the hit TV show Caesar's Hour. During his affiliation with both networks, he continued to perform concert engagements all over the world.

Wild supported and guided young musicians for nearly 50 years, giving masterclasses all over the world, joining the faculties of a number of American institutions at various times, and teaching classes at the conservatories in Beijing, Tokyo and Seoul.
He made his first recording in 1939 for RCA (accompanying the oboist Robert Bloom in a set of Handel sonatas) and subsequently recorded for 20 labels, including his own, Ivory Classics. His discography includes more than 35 concertos, 26 chamber works and more than 700 solo works. In 1997, his disc of transcriptions, Earl Wild – The Romantic Master, brought him a Grammy award.
For nearly 40 years he shared his life with Michael Rolland Davis, also his manager and record producer, who survives him. A witty, waspish man with a fund of outrageous jokes and scurrilous anecdotes, Wild was enjoyable company and held strong opinions on his fellow pianists and musicians. "I always play music that I like," he said. "If you don't play music that you like, it sounds like it. It's easy to learn something and then play it. But if you don't love it, what have you got?"
His final public performance came in 2007 at Los Angeles' Disney Hall, when he was presented with the presidential medal of the Academy of Recording Arts and Sciences. He was still giving classes a week before he died, in Palm Springs of congestive heart disease on January 23, 2010 at the age of 94.
Edited mainly from Jeremy Nicholas @ the Guardian