Simplify the following text for a Grade 7 native English-speaking person.
Original: Later in 1465 Busnois moved to Poitiers , where he not only became `` maÃ trise '' ( master of the choirboys ) , but managed to attract a flood of talented singers from the entire region ; by this time his reputation as singing teacher , scholar , and composer seems to have spread widely .
Simplified: Later in 1465 Busnois moved to Poitiers , where he not only became `` maÃ trise '' ( master of the choirboys ) , but managed to get lots of good singers from the region . By this time he was famous as a singing teacher and composer .