Carmen Get It!

Carmen Get It! is a "Tom and Jerry" animated short film, released on December 21, 1962. It was the thirteenth and final short in the series to be directed by Gene Deitch and produced by William L. Snyder in Czechoslovakia. This short was Deitch's last with MGM, as Chuck Jones took over production of the "Tom and Jerry" cartoons shortly afterwards.
Plot.
Tom chases Jerry into the opera house, where "Carmen" is being performed, but is quickly thrown off the premises by the guard. After an attempt to get in disguised as someone to see the show fails, Tom disguises himself as a musician carrying his 6-foot tall double bass case, successfully bluffing his way through by holding the case in front of his body. Spotting a nearby mouse hole, he opens his double bass case, inside which is a 5-foot tall cello case, inside which is a 3-foot tall viola case, inside which is a 2-foot tall violin case, inside which is a fake 24-inch or 2-foot long violin made of Maple, Spruce, and Ebony wood containing a tape player with a reel-to-reel tape of "Carmen". Rubbing his violin bow with cheese, Tom starts up the tape as the conductor begins the overture. With the tape covering for him, Tom waves his bow in front of the mouse hole. Fortunately, the scent of cheese draws Jerry out. Tom then smacks Jerry with his bow and catches him before rubbing him over the strings of his violin, but Jerry climbs into the violin's body and speeds up the tape. The noise draws the conductor's ire, who angrily marches up to Tom and smacks him over the head with the violin.
Jerry then climbs up the conductor's tuxedo and causes him to start frantically gyrating and to misconduct the orchestra into playing a jazzy rendition of the overture. He flings Jerry from his tuxedo into an orchestra member's tuba, where Tom catches him with a baseball glove. Jerry escapes again, and runs to the podium, where the conductor is getting a drink of water and catching his breath. Tom climbs onto the podium to catch Jerry, but the conductor slams the book onto Tom, leaving the marks of musical notes on his stomach. The conductor resumes the overture and throws Tom off the podium onto the floor.
Meanwhile, Jerry makes his way into a break room and spots a colony of 10,000 ants. Getting an idea, he leads them a la the Pied Piper to the podium where the conductor has left. He then has the 10,000 ants settle onto 12 blank pages of the score, looking like musical notes. He then gets Tom's attention, and as Tom tried to get him at the conductor's stand, the spotlight goes back on. Tom has no choice but to conduct the orchestra. However, when he reaches the page with the ants and mistakes them for notes, Jerry starts having them change positions, causing Tom to misconduct the music, to the point where it changes to an assortment of traditional American songs including "Yankee Doodle", "I Wish I Was In Dixie" and "There'll Be A Hot Time In The Old Town Tonight". Finally, the ants scatter, causing Tom to realize he's been tricked, followed by spotting Jerry. He then grabs the mouse and jabs into the podium's light socket and turns it on, lighting Jerry up. Just then, the conductor returns and Tom runs off.
The opera finally begins, and the singer playing Carmen walks onto the stage. She is just about to begin singing, when she suddenly screams because she sees Jerry dressed as a toreador dancing at the front of the stage and she quickly runs backstage. Tom takes the stage and catches Jerry, but the conductor sees him and thinks he has ruined the opera. The conductor loses his temper and his mind, and he goes on the stage and blocks Tom's way, indicating that he has had enough of Tom's shenanigans and wants to harm him. Jerry gives the terrified feline a red blanket, and the conductor goes wild like a furious bull. The dignified opera thus devolves into a farcical bullfight between Tom and the conductor while Jerry took over the conducting duties. After the music finishes, Jerry bows down to the audience and 100 ants form "THE END".