Although Marcia Strassman is credited, only her voice and an image of her on a cardboard cutout appear in the episode.
The folk song sung on record by dead singer Samantha Dain - who is shone only as a cardboard cutout of pre-"Welcome Back Kotter" actress Marcia Strassman - and possibly composed by "Ironside" incidental music songwriter-conductor Oliver Nelson, was used later that debut season as a drastically rearranged as a mournful blues tune sung by singer Tommy Cusack (played by James Farentino) in the "Ironside" episode "Something for Nothing" (Season 1, Episode 22) that aired February 22, 1968.
The song the rock group is practicing in the club when Ironside enters off-hours is the the same song played by party band in the "Get Smart" episode "Kiss of Death" (Season 2 Episode 15) that aired December 31, 1966.
The name of Marcia Strassman character is misspelled in the opening credits; Dian, not Dain.