
"Here is a photo of a test string for a string set we are making for a customer that is tuned to F000 to F#0 ( about 5Hz) on a 34" scale bass guitar. The gauge is a .375 . To put things in perspective, the string next to it is a .217."
From Octave 4 Plus FB page.
I was reluctant to post this because of some of the comments that might follow
EDIT That was just a rough test string, here's the result:
Link Removed