Complex sentence: He received his first music lessons from his father, a schoolmaster and organist who died in 1675; he may also have received lessons from Johann Heinrich Hildebrand, Kantor at Ohrdruf, who was a pupil of Heinrich Bach and Johann Christian Bach.
Split into simpler sentences: He received his first music lessons from his father, a schoolmaster and organist who died in 1675. He may also have received lessons from Johann Heinrich Hildebrand, Kantor at Ohrdruf, who was a pupil of Heinrich Bach and Johann Christian Bach.