"When the Nightingale Sang in Berkeley Square" is the title of a short story by Michael Arlen, published in 1923 as part of his collection "These Charming People". According to Maschwitz, the title of the song was "stolen" from that of the story. The song had its first performance in the summer of 1939 in a local bar, where the melody was played on piano by Manning Sherwin with the help of the resident saxophonist. Maschwitz sang the words while holding a glass of wine, but nobody seemed impressed. In the spring of 2002, an attempt was made to find the bar where this song was first performed: it was hoped that a blue plaque could be set up. With the help of the local tourist office, elderly residents were questioned, but it proved impossible to identify the venue.