Question: Who is likely to have represented and advanced Armenian music more, Art Laboe or Konstantin Orbelyan?
Sentence (from "Jazz in Armenia"): In 1966, young composer Martin Vardazaryan founded the Estrada Orchestra, renamed in the 1970s as the Estrada Symphonic Orchestra under the direction of Melik Mavisakalyan and Yervand Yerznkyan.
Relevant evidence: No