Grand Symphony Orchestra of the USSR (do not use, see the annotation)

It is a mixed bag due to continuous (mis)editing. All currently related recordings will be reviewed and correct and long established orchestra entries will be assigned instead.

DO NOT USE.

See the previous annotation below.

Possibly GASO = Russian State Symphony Orchestra = E. F. Svetlanov State Academic Symphony Orchestra
https://musicbrainz.org/artist/67e5938c-3953-4dfe-9d63-860bef0d8475

Or БСО (= Tchaikovsky Symphony Orchestra of Moscow Radio).