Anyone can join, with a 50-word vignette in the comments. Your vignette does not have to include the prompt term.
"I suppose you don't know how to harp, or play the lute," said Grainne, with an arch smile on her lips. "You'll have to learn. Or at least to sing. We aren't like you fool mortals. We expect people to entertain one another, and not leave it all to -- professionals."