The music mogul died last week after being in coma for days. He had been comatose after falling at a concert on October 29.
Rock said: "I have met many people, been to many places and seen many things, but he was definitely the best.
He could not sing but he was music personified."
Gul said that the legend's death had left a "great void" in the music industry.
Ertegun was buried at an ancestral family site near a Muslim religious lodge in Istanbul following a funeral service.
A memorial service will be held in New York in 2007, BBC NEWS reports.
