Instrumental call sign Radio Moscow.

[Geordie McBoyne]

Question in today's Daily Mail. What is the name of the tune Radio Moscow used as a call sign in the pre-soviet era?
It's called Wide is My Motherland.

https://www.youtube.com/watch?v=cxAnE7_27IU&index=1&list=RDcxAnE7_27IU

Geordie McBoyne.