"I like for you to listen then what I'm saying. I'd make the gitar say what I say, you unnerstand. If I say "Our Father" it say "Our Father. If I give out a hymn, it'll say it. If I play "Amazing Grace" it'll sing that too" - Fred McDowell in "Baby Please Don't Go" \ the liner notes to "I do not play no rock 'n' roll."
More often than not, instruments are played like artificial appendages.
Most musicians think that their instruments are detachable, their lives somehow disconnected with that of their own.
Here are a few examples, marked by their use of, at times, 'guitar singing,' all the while silencing the voice.
Of course, the point here is not to just drop off a word, as in Willie Mctell's song, "I got to (cross) it for myself," or in Charlie Patton's, "I'll meet you on that other (shore)," replacing it instead with an instrumental substitution of the same meaning, as if this process were a sort of musical alchemy. The point being that the guitar's heard here are not entirely separate entities from the musicians themselves.
points the way
with a turnip
"The man who is pulling up the turnips is so much one with them that he uses a turnip as his own finger, to point the way" - R.H. Blyth in Haiku, Vol. 4: Winter.