standard
well-known musical composition, considered part of the "standard repertoire" of one or more musical genres
blues standard
musical composition considered an important part of the musical repertoire of blues musicians; composition that is widely known, performed, and recorded by blues musicians, and widely known by listeners
The Minstrel Boy
Irish patriotic song written by Thomas Moore
pop standard
musical composition considered an important part of the musical repertoire of traditional pop musicians
jazz standard
musical composition considered an important part of the musical repertoire of jazz musicians; composition that is widely known, performed, and recorded by jazz musicians, and widely known by listeners