"I Hum a Waltz" 1937 sheet music for "This Is My Affair" by Mack Gordon & Harry Revel is a vintage and collectible piece of music memorabilia. Published by Miller Music, Inc. in the United States, this sheet music is suitable for intermediate level guitar, piano, and voice players. The waltz genre and musical style of the era are captured in this nostalgic piece, offering musicians and collectors a glimpse into the past with timeless melodies and lyrics. Perfect for those looking to perform or study classic musical compositions from the 1930s.