Simplify the following text for a Grade 10 native English-speaking person.
Original: Guillaume Dufay and Gilles Binchois , who wrote so-called Burgundian chansons ( because they were from the area known as Burgundy ) , were the most important chanson composers of the next generation ( c. 1420-1470 ) . Their chansons while somewhat simple in style , are also generally in three voices with a structural tenor .
Simplified: In the Renaissance Guillaume Dufay and Gilles Binchois wrote many simple chansons .