You also can tell who are/who have been professional musicians, using the above query: Most musicians who appreciate the art of music, who respect the craft and creativity of those who play, will answer that no time period holds a monopoly on great music. All great music is great, something musicians, and those who recognize talent, are quick to understand.
I am a fan of all great music. As former leader of, "The Most Versatile Dance Band In The Universe!" I put together a repertoire that ranged from 40's Swing to 90's Rock, and all points in between. In my last band, I added hip-hop and rap.
Anyone who boosts one music genre over another, who decries the "garbage that passes for music, today," is someone who fails to understand what great music is truly about.