I recall an interview with Butch Robbins in BNL, a number of years ago.
In that interview he described an amazing duet sung by Bill Monroe and John Duffy. The description Butch gave of the effect of the two high voices was detailed and you could tell there was something amazing that occurred.
It would be interesting to know more about this.
Like was it just one time or was it something they did on multiple occasions.
I saw them together doing a mandolin workshop in 1975, but I can’t recall them singing a duet.
Monroe and Duffey sang a duet on "I Hear a Sweet Voice Calling" at the old Berkshire Mountains Bluegrass Festival circa 1980. That was during the time when Butch was working with Monroe.
Duffey and Monroe engaged in a little stage patter before singing the song, challenging each other about who could sing higher. Today, my impression is that they probably did the song and routine every time the Blue Grass Boys and the Seldom Scene were working at the same festival.
If Butch reads this, I'm sure he can give plenty of details about the Monroe/Duffey duets.
I had a copy of a copy of an audience cassette recording of most of that festival. I learned a lot about bluegrass music from those recordings. And indeed, that duet would send chills down your spine, even when played from a third hand tape played on a cassette recorder.
When I saw them together at that mando workshop there was lots of banter and needling,, at one point Bill said to him after John went on about being funny during performances, “Yeah, John, there’s lots of times your mandolin playing made me laugh!”
Half the performers on the festival bill had wandered over to see the goings on between the two.
'Hatfield/Cox pot assembly' 19 min
'Gospel Plow' 35 min
'Finally !!' 50 min