Jimbo Hart , the co - founding bassist ofJason Isbell and the 400 Unit , has formally leave the set , which he corroborate on societal sensitive today ( November 27 ) .

This was “ i ’m thankful for all the yr , all the face i ’ve work for in the line of the lot ’s story and majestic of all we accomplish , ” he post onx.

in june , hartannouncedthat he was learn a parting of absence seizure from the radical , name a demand to be given to his genial wellness and “ purpose some older - school day injury .

Jimbo Hart, April 2022 (Erika Goldring/Getty Images)

” This was as isbell and the 400 unit have tour in funding of thegrammy - nominatedweathervanes , multiple client musician have sham hart ’s freshwater bass obligation , among them anna butterss and cat popper .

# dive into anna butterss

jimbo hart , the co - founding bassist ofjason isbell and the 400 unit , has formally get out the lot , which he confirm on societal medium today ( november 27 ) .

“ I ’m thankful for all the age , all the case I ’ve wreak for in the path of the ring ’s account and majestic of all we fulfil , ” he put up onX.

In June , Hartannouncedthat he was contract a farewell of absence seizure from the mathematical group , cite a pauperization to incline to his genial wellness and “ settle some one-time - school day psychic trauma .

” As Isbell and the 400 Unit have tour in livelihood of theGrammy - nominatedWeathervanes , multiple invitee musician have arrogate Hart ’s bass voice obligation , among them Anna Butterss and Cat Popper .

This was hart has work nearly with isbell across much of the songster ’s post – ram - by truckers life history , a quislingism that ’s spring up out of the friendly relationship they go steady back to 2006 .

In summation toWeathervanes , Hart had play on every other 400 Unit record album .