"Happy Birthday" is based on a simple children's song from 1893, which the sisters Mildred and Patty Hill wrote for their kindergarten. The easy-to-sing melody was intended to make it easier for children to sing together and was later given today's birthday lyrics. This instrumental, expressive and festive piano arrangement of "Happy Birthday" is in F major and is ideal for the advanced player. With musically meaningful repetition, careful fingerings, easy time signature changes and a brilliant final run with quaver triplets. In the course of the melody, there are also several quaver triplet runs in the form of broken triad chords, which lend the arrangement additional elegance and virtuosity. The left hand accompanies like a waltz, giving the piece an elegant, flowing character. It is ideal for birthday surprises, lessons or small performances. It is advisable to play the song with the indicated pedal signs.