What are the notes for Feliz cumpleanos in the piano?

The melody of "Feliz Cumpleaños" can be played using the following notes in the key of C major: C, C, D, C, F, E for "Feliz cumpleaños a ti," followed by C, C, D, C, G, F for the next line. Repeat these sequences for the remaining verses. Adjust the key if necessary to suit your vocal range.