Full title: Twelve Scotch, and Twelve Irish Airs with variations Set for the German Flute Violin or Harpsichord, by Mr. Burk Thumoth.
Publisher: London: John Simpson
Printer: Printed for John Simpson
Kidson (p.50, p.131) notes that 1st edition was by John Simpson (succeeded by John Cox), the 2nd by Thorowgood (1760s), and the 3rd by the Thompsons, all from the original plates.
The basslines in this collection are Italianate with figures, but some are simpler, especially in the Irish section of the book (nos. 13-24). Some have quaver figurations, including 'Wallace March' whose setting is clearly based on that in Alexander Munro's A Collection of the Best Scots Tunes (Paris, 1732). 'The Irish Cry' (no.23) has no bass, but the following Jig to it has.
Biographical info: Thumoth (fl. 1739–50) was an Irish music editor, composer, flautist and trumpeter, performing as a soloist in both Dublin and London (Grove). Of his two collections of tunes, Book 1 contained Scotch and Irish, and Book 2 English and Irish Airs. Burk's name is sometimes spelled 'Burke'.
GB-Cu (incomplete, info from RISM)
GB-En Glen 191 (S. A. & P. Thompson, c.1785)
GB-En Inglis 79 (Simpson, 1745)
GB-Eu Dm.3.11/3 (c.1742)
GB-Gm M9055 / 786.48 (pencil note: BUCEM c.1765)
GB-Lbl e.341 (Simpson, 1745))
GB-Lbl e.341.a (composite volume: Forty-eight English, Irish and Scotch Airs, S. A. & P. Thompson, c.1785)
GB-Ob Harding Mus. M 4 (1) (Simpson, 1745)
GB-P Ad27 (Simpson, 1742, Bound with Twelve English and Twelve Irish Airs)
This source has not been digitised.