Astor Pantaleón Piazzolla (Spanish pronunciation: [pja'sola], Italian pronunciation: [pjat'ts?lla]; March 11, 1921 – July 4, 1992) was an Argentine tango composer, bandoneon player, and arranger.
His oeuvre revolutionized the traditional tango into a new style termed nuevo tango, incorporating elements from jazz and classical music.
A virtuoso bandoneonist, he regularly performed his own compositions with a variety of ensembles.
In 1992, American music critic Stephen Holden described Piazzolla as "the world's foremost composer of tango music".