Musicologists often disagree on the identities of tunes. The tune for Burns' "Tam Glen" is generally agreed to be a version of "My Name is old Hewson the Cobler". Burns friend Robert Riddell misidentified the tune as "Mall Roe (Irish)".

These two tunes and "Old Rosin the Beau" are all somewhat similar. Perhaps this explains why Moll Roe above got sung to "Old Rosin the Beau" instead of "Moll Roe in the morning".