20 Standards (Quartet) 2003 is a live album 4CD box set by American composer and saxophonist Anthony Braxton recorded in Europe in 2003 and released on the Leo label in 2005.

[1][2] The AllMusic review by François Couture states: ...one is struck by the multifaceted balance of the album as a whole... Braxton pays a loving tribute to each tune, respecting the melody, pushing it beyond the composer's wildest dreams, taking it apart and reassembling it in the most natural-sounding way.

...These are masterfully creative revisitations of chunks of jazz history, big and small.All About Jazz reviewer Christinan Carey noted: Much of the repertoire featured here was integral to the cool jazz of the fifties, but the quartet tears into it like it was written yesterday.

...If you want to hear your favorite old standards sounding brand new again, this set fits the bill.Disc One: Disc Two: Disc Three: Disc Four: