Steve Schwartz:

>I believe it was under copyright of a Russian (pre-Revolutionary)
>publisher.  Come the Revolution, since Russia had never signed the
>international copyright agreement, Stravinsky was out of income from
>his most popular scores.

Part of the problem was that the U.S. had not signed the Berne Convention
either, so that, even though Sacre was copyright in England and Germany
(Boosey & Hawkes published an edition in 1921) Stravinsky was not a citizen
of a signatory nation, and so, legally, he was not fully covered
internationally.

Jim Tobin