'Robert Burns's Interleaved Scots Musical Museum' or the 'Interleaved Glenriddell Manuscript'[1] is a set of four octavo volumes of James Johnson's The Scots Musical Museum in which Robert Burns provided additional material to the original publication on interleaved sheets and which he eventually gifted to Captain Robert Riddell (1755–94) of Friars Carse, Dumfries and Galloway, Scotland.

[3] Burns accepted no payment and much of this time-consuming project relates to his early years in the Excise when he had included the supervision of twelve parishes and around 200 miles of travel on horseback each week.

A copy of this I shall leave with you, the editor, to publish at some after period by way of making the Museum a book famous to the end of time and you renowned forever.

[7] The new works in this volume show that Burns's time in the area was highly productive in terms of his imaginative inspirations and resultant songs and poems.

[8] Mackay records that Robert Riddell first supplied Burns with the interleaved volumes[7] as he had done for the poet when he wrote the Glenriddell Manuscripts.

[10] A London bookseller, John Salkeld, acquired it in 1871 as part of a job lot, advertised in his catalogue for £110 and it was purchased by H. F. Nicols, a book collector.

David Cuthbertson in 1922 was researching in the Laing Collection at Edinburgh University library when he stumbled upon a manuscript of twelve folio pages in Burns's handwriting.

[10] Together with J.C.Dick's "Songs of Robert Burns" and Davidson Cook's annotations thereon, it was re-issued in 1962 as a single volume by Folklore Associates, Hatboro, Pennsylvania.

He rarely commented on his own verses other than to apologise for them, his emphasis being on the sources for the songs and his reasons for altering them, such as adding political content.

In a letter to Frances Dunlop he revealed that Those marked, Z, I have given to the world as old verses to their respective tunes; but in fact, of a good many of them, little more than the Chorus is ancient.

[2] R.H.Cromek, as stated, was able to examine the volumes owned by Eliza Bayley and pages 187 to 306 of his Reliques of Robert Burns, published in 1808, carry a transcript of the Notes.

[14] Famously, when David Cuthbertson discovered the twelve folio manuscripts in Edinburgh the crucial page carrying the note on The Highland Lassie O was not one of them.

I composed the verses on the amiable and excellent family of Whitefoord's leaving Ballochmyle, when Sir John's misfortunes had obliged him to sell the estate.

After a pretty long tract of the most ardent reciprocal attachment, we met by appointment, on the second Sunday of May, in a sequestered spot by the Banks of Ayr, where we spent the day in taking a farewel, before she should embark for the West-Highlands, to arrange matters among her friends for our projected change of life.

At the close of Autumn following she crossed the sea to meet me at Greenock, where she had scarce landed when she was seized with a malignant fever, which hurried my dear girl to the grave in a few days, before I could even hear of her illness..[22]: 237 x.

O'er the Moor among the Heather - This song is the composition of a Jean Glover, a girl who was not only a whore, but also a thief; and in one or other character has visited most of the Correction Houses in the West.