[Note 059.0] The song gives a description of a working-class excursion that agrees well with those of participants and observers. The song was performed by Lily Langtree. The fact that she was widely known to be a former mistress of the Prince of Wales (later Edward VII); who was known to the public as "Bertie" presumably added a frisson to the performance. [Ref: https://en.wikipedia.org/wiki/Lillie_Langtry#Royal_mistress]