The title is a dedication to the film star Humphrey Bogart ("2HB" = "To Humphrey Bogart"). In particular, the song references the Bogart classic Casablanca.
The instrumentation on the Roxy Music recording is dominated by Ferry's Hohner Pianet N electric piano and features an Andy Mackay sax solo—based on the melody of "As Time Goes By", a song featured prominently in Casablanca—that is treated with tape echo effects by Brian Eno.
^Reed, John (2014). House of Fun: The Story of Madness. Omnibus Press. p. unknown. ISBN9781783233342.
^"Madness Central - Tour Madness". www.madnesstradingring.com. Archived from the original on 8 October 2011. Retrieved 30 May 2020. Meanwhile the band have begun writing new material of which 4BF, a tribute to Brian Ferry, is the first to be premiered.