If you were to ask people at random on the street today "Who is the greatest musician of all time?", what would be their response?
Perhaps they will start with the most popular stars of our time. Some might reference the late "King of Pop" or the late "Queen of Soul". You can expect to hear about the 'gods' of Rock n' Roll.
A more sophisticated scholar of music history and theory is likely to drop the names "Mozart", "Beethoven", "Bach", "Chopin", "Tchaikovsky", "Vivaldi", "Handel", or "Haydn".
A crowd gathers outside the barbershop. More and more people chime in on what should have been an icebreaker between you and the old man who left to catch the bus.
Between the occasional jokes, it is clear that more and more interest is building in this debate. Spirits run high as each expert tries to cut off the other in what is arguably the greatest, most epic rap battle of the century.
But there is one note missing from this ensemble. You cannot take it anymore. Suddenly, you yell out "Dear God! Hasn't anyone heard the name of the great Blind Thomas or Blind Boone?"
Everyone turns around and stares at you in silence.
And you are just as confused as they are.
You proceed to tell them the stories of two blind men.