I found this book online containing "English, Scottish, Irish, and Welsh" tunes, apparently first printed about 1840, by John Rook:

http://www.cl.cam.ac.uk/~rja14/musicfiles/rook/rook_pages/cover.htm

http://www.cl.cam.ac.uk/~rja14/musicfiles/rook/rook_pages/index.htm

I don't know who the McLae referenced is, but here is his tune:

http://www.cl.cam.ac.uk/~rja14/musicfiles/rook/rook_pages/196.htm

Note that my eldest 100% confirmed ancestor (at this point), John McLea, b. 1790, d. 1830s, is referred to as John McLae in his 1818 marriage record.

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