tell me the pun word of this- show me a piano falling down a mine shaft, and i will show you a-flat miner.

and chose 2 meaning of it

1 a musical instrument operated by keys
2 a musical note (chord)
3 a person who works in a mine that has been squished (flattened) during an on the job accident
4 a person who works in a mine and digs tunnels
5 a person under the age of 18​