The melody was written by Mildred J. Hill, a pianist and composer from Louisville, Kentucky, for Good Morning to All, a greeting song with words by her sister Patty Smith Hill, who ran a kindergarten in the city. It was published in 1893 in the sisters' songbook Song Stories for the Kindergarten. The birthday words, sung to the same tune, appear in print from the early 1910s, and in time they became far better known than the original.
For decades the song was treated as copyrighted, and licence fees were collected for its public use. In September 2015, in the case Marya v. Warner/Chappell Music, a US federal judge ruled that Warner/Chappell's copyright claim over the words was invalid; after a settlement, the court declared the song to be in the public domain in June 2016. The melody itself is by a composer who died in 1916.
This transcription: Mildred J. Hill, "Good Morning to All" (1893): the melody as sung today to "Happy Birthday to You", in C major; left hand by GOONS Studio.
Transcribed by GOONS Studio from the original work, which is in the public domain.
On guitar: Happy Birthday guitar chords and lyrics, with a guitar that strums along.
For kids: Happy Birthday to You by colors, on a rainbow piano that lights the next key and waits.