What is Jingle Bells on the piano notes?

The piano notes for "Jingle Bells" are:

Verse 1

D D D, G, A, AA

G GG, D, G, A, AA

Chorus

D, D, D, G, A, A

D D, E, F#, G, A

Verse 2

D, D, D, G, A, AA

GG G, D, G, A, AA

Chorus

D, D, D, G, A, A

D D, E, F#, G, A