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These works:

http://imslp.org/wiki/2_Klaviertrios,_O ... Christian)

were originally published in 1778 in Four Sonatas and Two Duetts, Op.15, which means that the original title was "Sonata". I've tagged the page as "sonatas", but since the title "Klaviertrio" seems to be from the 1959 edition, should I change the work page title?

Oh dear, it looks like the J C Bach category is full of inconsistencies! Lets' follow LC for now, and put them under "4 Sonatas and 2 Duetts, Op.15", to be tagged under the original designation as "sonatas" and "duets". The instrumentation is said by LC to be "vn pf" (Nos.1-4), "2pf" (No.5) and "pf4h" (No.6), so I don't know where the keyboard trio description comes from (unless they're arrangements from other works).

According to Grove, only nos. 3-4 were for vn pf/hpd. Nos.1-2 were for the trio. I've moved it and re-tagged. As some point, I think we probably need to check if we have the others and move them to the same page.

BTW, there was a Four Sonatas and Two Duetts op.18 as well.