My favorite place for yoga is @In.Joy Studio they have a variety of yoga classes and meditation sessions. very creative and friendly instructors. I very much recommend this place.
If you mean have dinner while someone is performing then you can go to @Fame Restaurant they always have performers and singers .. they even bring solo saxophonists to play while you enjoy your food
one of the nicest spots in Amman where you can have a nice romantic lunch/dinner is @Vinaigrette mainly because of its view and good food. Also you can go to @La Capitale Restaurant if you're looking for a fancier option