The Greek God of Music and Poetry was Apollo. He was one of the 12 Olympian Gods and was associated with sun, light, and prophecy. Apollo was known for his incredible skills in playing the lyre and was often portrayed as a musician, holding a lyre in his hand. He was also the patron of poetry and was believed to have inspired bards and singers. In Greek mythology, Apollo was considered the supreme leader of the Muses, who were the goddesses of music, poetry, and the arts. Apollo was also known to have a major role in the development of ancient Greek culture, especially in the fields of music and poetry.