
I have, courtesy of a very much liked semi-annual book sale, a mysterious Kalmus 1981 book of 10 clarinet duets (clarinet and other instruments) "by Glazunov". Worldcat suggests that it is a reprint of the 1958 book
Desi︠a︡t' malen'kikh duetov : dli︠a︡ druk︠h︡ instrumentov bez soprovozhdehii︠a︡
(see Worldcat)
by Gos. muzykalʹnoe izd-vo. I am guessing that the US copyright status is fairly well protected (presumably some editors should be specified. I also don't know if these are the original instrumentations of these works - I will do a melody-search on RISM, which has an incipit-search a little different from the Peachnote one but also quite useful, to see if perhaps they're based on piano works in manuscript of his, maybe- but arranged by... whom?... - anyhow it's a set of brief minuets and other character pieces. Still, it would be interesting to know if I could scan and upload it (or some of the other books I've been getting at these sales- I should ask to see if even those that seem very definitely copyrighted have been renewed, like the Caldara Regina Coeli (pub 1971)... hrm. Anyway. Right. Tangent, tangent, tangent.)
Eric