» Will Ye Go, Lassie (Wild Mountain Thyme)
Clearly derived from a poem/song by Scottish poet Robert Tannahill (1774-1810) which starts
Let us go, lassie go
To the braes o' Balquhither
Where the blae-berries grow
'Mang the bonny Highland heather
The full text is easily found on the Internet
There is, unfortunately, some interference from a mobile phone at one point. I hope this does not detract from your listening pleasure.