This was months before Les Paul and Mary Ford had their first multi-voiced release. Paul was the first to make use of the technique of multitracking to record separate elements of a musical piece asynchronously – that is, separate elements could be recorded at different times.
Several months before Les Paul and Mary Ford released their first multi-part song, Paul was among the pioneers in using multitrack recording. He utilized this technique to record different elements of a musical composition asynchronously, meaning that these parts could be captured at various times.