The Parting Glass is a well known Traditional Irish song that is often sung at the end of of the night at Irish sessions and at gatherings.
Below is version of the tab of the basic melody, arranged for One String Canjos.
5 4 3 1 1 0 1 3 5 4 O-f all the money, that e’er I had 3 4 5 5 5 4 3 4 5 1 0 I have spent it i--n good comp-any 5 4 3 1 1 0 1 3 5 4 O-f all the harm, that e’er I’ve done 3 4 5 9 8 5 4 1 0 1 A-l-as it was to none but me 8 8 5 9 8 8 8 5 9 8 And a-ll I’ve done, for want of wit 5 6 5 4 3 4 5 1 0 To memory now I can’t recall 5 4 3 1 1 0 1 3 5 4 S-o fill to me, a-- parting glass 3 4 5 9 8 5 4 3 1 0 1 Good Night and joy b-e with you all