The song that Angela Lansbury sings as Emma MacGill, "Good-bye, Little Yellow Bird," is the song her character sang in The Picture of Dorian Gray (1945).
Angela Lansbury's mother took Moyna MacGill as her stage name, and the surname MacGill is used several times in the series for Jessica Fletcher's ancestors or relatives.
Reunites Angela Lansbury with Glynis Johns, her co-star in The Court Jester (1955), and with Olivia Hussey who played her daughter in Death on the Nile (1978).
The title is from the nursery rhyme "Sing a song of six pence" that is usually found in Mother Goose collections.
The poster by Ian Pollock on Oliver Trumbull's wall is from the Royal Shakespeare Company's 1982 production of King Lear directed by Adrian Noble and shows Michael Gambon and Anthony Sher.