for some reason i'm testing joker's gun on revue songs. (actually using joker kirby lol)
so far, starlight theater goes well with the normal speed.
love's wicked pitch goes well with 1.5 speed, but so does rose poems. i didnt' expect rose poems tho.
EDIT: star divine goes with 2/3 speed, and pride and arrogance goes with 1/2 speed. nothing goes with 1/4 speed tho.