Double Bass Extension D-F# solo string.

[Carlos2bass]

Anybody knows who makes an C-extension solo tuning string 8that would be actually D open and F# closed);
if not what solutions have you had for using solo tuning scordatura with you c extencion.
Thanks in advance

 

[JoeyNaeger]

You can get a solo tuning spirocore extended D.

 

[bejoyous]

In solo repertoire, you'll only play about 5 notes on this string. I wouldn't bother getting a solo string for the 4th string. Edgar Meyer doesn't.