As per the Oxford English Dictionary, "Coda, n: Music. Esp. in classical music: an independent and often elaborate passage which follows the end of the main part of a movement and brings the movement to its conclusion. More generally: the concluding passage of a piece or movement, typically forming an addition to its basic structure."
Coda 3 is one of the first 'Music' paintings that Cenedella made in 1981. The chaotic scene takes place inside a music hall showing a enchanted audience listening to the symphony orchestra passionately playing their instruments which are spewing out Billiard Table balls, including the 1, 3, 8 and 9 balls, while they follow their emphatic overweight Conductor passionately directs his musicians with his batons.