Pete Jolly, born Peter Ceragioli Jr. (c.1932-2004) was an American jazz keyboardist and accordionist, likely best known for his performance of various television themes.
His composition "Little Bird" was nominated for a Grammy Award in 1963, and he formed the Pete Jolly Trio in 1964. With the Trio, and also as a solo artist, he recorded several albums, the last being in 2000; a collaboration with Jan Lundgren. He also worked with other notable jazz artists, including Buddy DeFranco, Art Pepper, and Red Norvo.
This introduction is taken from Pete Jolly’s entry on Wikipedia where detailed information about the band members, and their history can be found.