una corda/tre corda

[Michael Gamble]

Hello List and Dick M who said:
"I have never heard of tre corda, but then I only had 4 years of lessons
growing up."
But have you heard of "Tre carte, tre carte, tres carte!" courtesy
Tschaikowsky "Q of S"
Maybe you are thinking of "Tri-cords" ? Non? Just a 50% increase on
"Bi-cords"
Regards
Michael G (UK)