O’Keefe, Siabhan

She is an accordionist who has performed with the ensemble known as Celtonia.

She appears n the CD Celtic Flute Magic, which is one of the series Celtic Flute Trilogy.

Sources:

1. http://www.zahzah.com/catalog/zcd9804z.htm
2. http://www.amazon.com/Celtic-Flute-Magic/dp/B001IZ8BDO/ref=sr_1_1?ie=UTF8&s=dmusic&qid=1237991342&sr=1-1