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 "Pyotr Ivanovich Isakov"): Pyotr Ivanovich Isakov (Russian: Петр Иванович Исаков; 1886-1958) was a Russian classical guitarist known for his arrangements and performances, as well as for his teaching activities.
Relevant evidence: No