This tune was reputedly the Last Waltz played as the Titanic went down. It is what the French would call a waltz-musette, hence the (approximate) arpeggio third part to be played as a variation or an underlay to the first part (if you are brave enough to play it).
It has been a favorite of mine for decades
Thanks so much AGAIN Geoff……I never realised how much there was to this tune……boy have I got a tough time ahead of me !!!
It must have taken you ages to notate it…..I owe you a beer mate……