в дальнем конце зала была сцена, на

в дальнем конце зала была сцена, на которой стояли четыре человека из оркестра и играли вальс

Results (English) 1:

at the far end of the Hall was a scene in which the four men were from the Orchestra and played the waltz

Results (English) 2:

at the far end of the hall was a scene in which there were four people in the orchestra and played the waltz

Results (English) 3:

At the far end of the room was a scene in which stood four of orchestra and played a waltz