...is a decent performer and managed to amuse a sultan.

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(Ancient) Arabian Nights
Whois
...is a decent performer and managed to amuse a sultan.
...is a consummate performer and once greatly amused a sultan.

Play instrument around the town and get some coins from the people, start with the snake charmer, fire eater and sword swallower then in random rooms, once you get some money, hunt the sultan and ask sultan performance, then play instrument.