Composer/pianist, Olegario Diaz was born in Caracas, Venezuela. He studied music at Berklee College of Music in Boston, Massachusetts, where he earned a Bachelor's degree in composition in 1978. Later, in 1986 he earned a Master's degree in Jazz Studies from the Manhattan School of Music in New York.
Olegario Diaz has performed as a pianist in the East and West Coast with artists such as Tito Puente, Willie Bobbo, Celia Cruz, Mario Bauza Big Band, Paquito de Rivera, Louie Ramirez, Victor Paz and Daniel Ponce.
For his SteepleChase debut album, he recorded with renowned musicians in the New York jazz scene: Rich Perry (tenor Sax), Ron McClure (Bass) and Billy Hart (Drums).
For his second, third, fourth and fifth SteepleChase albums, he reunited with artists like Randy Brecker, Lewis Nash, Ron McClure, Rich Perry, Alex Sipiagin, Seamus Blake, Scott Colley, Jeff Tain Watts, James Genus, Nate Smith, Bob Franceshini and Bill Stewart.