This thread was started by a man whose last name indicates he is descended from the Q-Celts. With the exception of a few tunes from the Gaelic speaking Scots of the highlands and islands, scatered around in various Scots collections of the 18th century, I have listed above practically all the sources of music of the Q-Celts prior to c 1793. Scholars have turned up a few other early Irish tunes that are commented on in fairly recent journals. Check, for instance, for Prof. David Greer of the Univ. of Durham. A discussion of the subject of early Celtic tunes has just started on the Scots music list Scots-L, and some contributors to this DT forum are also on that list.