Attempted to play along with the strings stem on my viola - advice welcome and I can always keep practicing so there is a chance of a better take...

Also took pepina's whistling suggestion (yay whistling!) and whistled along to her new version the ending. There are three takes here, but just in case you want to hear it along with the singing please find a mp3 of the first take in the results (don't listen too loudly cause it gets shrill that way - it's raw cause I have no clue when it comes to mixing). Again, suggestions welcome if this isn't what you had in mind... I'm more than happy to try again:)