As I walks around the the Kremlin with an highly furtive air
You can here them all declare, "he's at least a commissionaire"
You can see them try, but they'll never guess
You can see them sigh, but I won't confess
I'm the man who blows up railroad trains for Trotsky.

There's a nice collection of non-Stalinist left-wing songs called "My Darling Party Line", by Joe Glazer, on the Collector label. Available from CAMSCO, of course.

Tracks - Song of the Old Bosheviks, The Cloakmaker's Union, Our Line's Been Changed Again, The Lady With the Popular Front, The Land of the Daily Worker, In Old Moscow, Unite for Unity, Bill Bailey, The Last International, The Ballad of Harry Pollitt, Little Joe the Rustler, Nikita's Lament, Something Has Gone Awry, The Lady from Siberia, Sovietology