SG Foundation level/Access 3
repetition - bars 3+4
Scottish - the piece is in a Scottish style
single line - the piece is a single line melody sung by the voice
unaccompanied - the piece is unaccompanied

SG General level/Intermediate 1
anacrusis - bar 1
compound time - the song is in compound time
jig - the melody is in a jig style
bothy ballad - the song is a bothy ballad

SG Credit level/Intermediate 2
groupings in compound time - bars 12+13
strophic - the song is in strophic form

Here is a score of Sleepytoon with some of the concepts added.

Scots Song Concepts page