I Let A Song Go Out Of My Heart
Benny Goodman Benny Goodman and His Orchestra & Martha Tilton Lyrics

The lyrics of "I Let A Song Go Out Of My Heart" is one of many love songs that tries to capture the pain of losing someone who means a lot. The opening line of the song tells it all – by letting the song go out of his heart, the persona lost something valuable to him. The persona appears to suggest that this lost ‘song’ was the sweetest melody. The song captured something very dear and precious to his heart, which he had taken for granted. It is upon the loss of that melody, that the persona realizes his mistake. He begins to feel despondent, as if he had lost a part of his soul, heaven.

The next verse shows the depth of the persona's sorrow. Since the loss of that sweet melody, his life has lost meaning. He acknowledges that he was wrong and asks if it is too late to make amends, admitting that their relationship was more than friendship. With the absence of that sweet melody, the persona's world is dark and empty. He hopes that the person he had lost his heart to would return to bring back music and life into his sorrowful life.

Overall, the song paints a picture of a broken heart and the desire to retrieve what was once lost. The persona knows what he wants, begs for forgiveness, and hopes that the person he lost will come back to him. As a result of the nostalgic and sentimental lyrics, the song I Let A Song Go Out Of My Heart became quite popular during the swing era of the late 1930s and early 1940s.