...forthcoming from Audax:
https://www.prestomusic.com/classical/products/9765226--brahms-gernsheim
It seems that it is a misleading title as the real op. 41 corresponds to 2 Lieder für vier Männerstimmen. It should be the op. 6, effectively the Piano Quartet in E-flat major.
Especially if it's volume 3 of a series that contained the 3rd? recording of his 3rd piano quartet and the first recording of his 2nd piano quartet, iirc?
It seems that Audax have got this wrong themselves:
https://www.audax-records.fr/adx11213
The Piano Quartet in E flat is indeed Op.6. Thread title duly amended.
I pointed this out to Audax who thanked me and said that, after checking, they found the error was on their website, but not on the physical product.
Oh, well done. Thanks, Gareth!
That accounts for my confusion! It's not always down to age ;D