Wiktionary
tonalist
n. An artist working in the style of tonalism.
Wikipedia
Tonalist
Tonalist (foaled February 11, 2011) is an American Thoroughbred racehorse best known for winning the 2014 Belmont Stakes, beating the favored California Chrome, who was attempting to win the Triple Crown. Tonalist won the Peter Pan Stakes in May 2014. He is the first horse since A.P. Indy in 1992 to win the Peter Pan/Belmont double. Later in the year he defeated older horses to win the Jockey Club Gold Cup.