During the 15th century, the Low Countries region (modern Belgium, Luxembourg, and Netherlands) was home to many flourishing commercial centers and trade as part of the Burgundian lands. This commerce supported religious institutions and choir schools for church singers. Many major composers of polyphony during 1425-1550 were born in the Burgundian Low Countries, including Jacob Obrecht. Obrecht was known for his multiple cantus firmus masses that combined several pre-existing melodies. Instruments in the 15th century were classified as "haut" (loud) such as trumpets and shawms or "bas" (soft) such as recorders and lutes. The basse danse was a