Question: Frank Bungarten is a classical guitarist from Germany, in 1981, he got noticed in the international guitar scene, when Andrés Segovia Torres, 1st Marquis of Salobreña, a virtuoso Spanish classical guitarist from Linares, Spain, honored him with the first prize at which event?
Sentence (from "Andrés Segovia"): He is regarded as one of the greatest guitarists of all time and the grandfather of the classical guitar.
Relevant evidence: No