In the "Tom and Jerry" animation, there are many episodes where musical instruments are played. The following are some specific episode numbers and descriptions:

1. Episode 81 "Cat Concerto": This is the most famous episode of "Tom and Jerry", with Tom playing on the stage Piano, the little mouse Jerry is jumping around and making trouble on the piano, and all the keystrokes are perfectly consistent with the background music. In this episode Tom plays "Hungarian Rhapsody No. 2".

2. Episode 1 "Pussycat Versus Zombies": In this episode, Tom plays the guitar in the room and tries to use guitar music to fight against the invading zombies.

3. Episode 66 "Swingin' on a Star": In this episode, Tom and Jerry play jazz in a bar, including Tom playing the saxophone and Jerry playing the drums.

4. Episode 24 "Save the Cat": In this episode, Tom plays the piano to comfort Jerry who is trapped in the cave.

5. Episode 19 "operatic Tenor Mouse": In this episode, both Tom and Jerry become opera singers and they sing together on stage.

These are just some of the episodes, there are many other episodes that feature musical instrument playing.