Betting music and for once betting is part of the tune.There have been songs about horse racing ("Stuball", "The Race Is On", "Run for the Roses",etc.)but this is the only song I know of that is about greyhound racing.It's a song by the Who called "Dogs".It reached # 25 in the UK charts in 1968 but wasn't released in the US until a 1990's box set.Probably too "British" for the American market, with the Cockney accented singing , references to White City (London dog track) and "the Duke's dog" ,Prince Philip, aka the Duke of Edinburgh, who owned several racing greyhounds.