"It's been six years since Sileas' last album, and this (their fourth) is very probably their best and definitely worth the wait - that's probably all you need to know. Sileas' hallmark - the interplay between Patsy Seddon's gut strung harp and Mary Macmaster's wire strung harp - is just perfect, as is the judicious use of the electro-harp to add layers to the sound (Planxty Crockery/Domhnall Dubh is a good example). Their singing (mainly in Gaelic) grows in stature, and their vocal arrangements have become more adventurous while remaining strongly rooted in traditional music. On several songs the clever use of dissonance and resonance is extremely effective (conjuring up vague memories of Hindemith or some such modern composers). The keening song Pi Li Li Liu is just stunning even if it is only 45 seconds long! Actually it appears twice: ten minutes after the "end" of the final track Tha Sior Chaoineadh (another stunner) you get jolted by a re-run.

"That said, the charms of Play On Light are less immediate, less up-front than on previous albums. Both voices are somehow softer-edged than before (though the steel is still there) and are all the more effective for it - listen to the held back version of Bill Wither's Ain't No Sunshine or the ballad May Colvin . Perhaps it's the influence of producer Jim Sutherland. It's a tremendous album, beautifully put together, and gets under your skin more and more with each spin. What more could you ask?"

Bob Walton