if you play diatonic harp there are diatonic versions for this song on this site. 4 3 4 4 3 4 This old man he played one -3 4 -2 3 -1 3 -2 he played nick nack on my thumb 3 -2 4 1 1 1 1 with a nick nack paddy whack 1 2 -1 3 -2 give a dog a bone -2 2 2 3 -1 2 1 this old man came rollin home