I wasn't even aware that Take the A–Train had lyrics, so naturally I took to the Internet to investigate.
Turns out that the opening lines are 'You must take the "A" train. To go to Sugar Hill way up in Harlem.'
I would suggest that "Sugar Hill" would be an equally acceptable answer to this question.
Incidentally ... when I searched for "take the a-train lyrics" on Bing (I prefer Google, but Firefox defaults to Bing), it came up with the lyrics to Chantilly Lace; and the same happens on this Bing video. I have no idea what's going on here!
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