What are the recorder notes for "Happy Birthday"?

The notes A, B, C, D, E, F and G are used to play the song "Happy Birthday." The musical sequence is: D D E E G F#, D D E D A G, D D D' B G F# E, C C B G A G.

When written, D represents a low D and D' represents a high D. The sequence is often written: DD E E G F#, DD E D A G, DD D' B G F# E, CC B G A G, with the first two notes of each line grouped together to indicate that they should be played together quickly in succession.