What is the last letter of a four-letter word meaning "a dramatic performance on stage"?

Y

Explanation:

In theatre, a dramatic performance on stage is called a "play." The last letter of this four-letter word is "y." A play usually consists of dialogue or singing between characters. Although plays are meant to be performed on stage, they can also be read in the same way a novel would be. In this case, the written text still receives the name of "play."

we don't know what poem you are referring to

explanation: