Let me see if I can get this right - I think I know all three tunes but only the name of one of them before now.
Chopsticks is all choppy and goes:
"Da-da-da-da-da-da, da-da-da-da-da-da, da-da-da-da-da-da, da, da-da-da-da-"
The 'black note one' - Donkey's Gallop - is:
"Diddle-um-dum-dum, Diddle-um-dum-dum, Diddle-um-dum-um-dum-um-dum-dum"
And Heart and Soul (which I only recognised in the thread when someone said it was the one in the film Big

) is:
"Ding, ding, dee-de-de-de-de-de, Ding, ding, dee-de-de-de-de-de, Ding (high), Ding (low), de-de-de-de-de, deedle-eedle, deedle-eddle, deedle-eddle, dum"