Premise: Ballads of Sacco & Vanzetti is a set of ballad songs, written and performed by Woody Guthrie, related to the trial, conviction and execution of Sacco and Vanzetti. The series was commissioned by Moe Asch in 1945 and recorded in 1946 and 1947. Guthrie never completed the project and was unsatisfied by the result. The project was released later in its abandoned form by Asch.
Hypothesis: Moe Asch released the Ballads of Sacco & Vanzetti in 1947.