Simplify the following text for a Grade 7 native English-speaking person.
Original: The third movement , called Elegia by BartÃ k , is another slow movement , typical of BartÃ k 's so-called `` Night music '' .
Simplified: The third movement , called Elegia by BartÃ k , is another slow movement , typical of BartÃ k 's night music .