Found this from Celtic Collections page:

We welcome back Chloë for a stunning version of Angel, Megan Walsh & Tara McNeill duet on The Lakes of Pontchartrain, and Susan McFadden performs the haunting May It Be. The album also introduces newest member Muirgen O’Mahony, and includes a performance by British folk group The Longest Johns who join Celtic Woman on a version of Richard Thompson’s Beeswing.

https://www.celticcollections.com/collections/celtic-woman-cd/products/celtic-woman-postcards-from-ireland-cd-pre-order

Hope Eabha and her husband recover soon. Btw generally if you want to be extra-careful, 20 days is the median from a research (https://www.thelancet.com/journals/lancet/article/PIIS0140-6736(20)30566-3/fulltext#seccestitle160) for someone who previously has COVID-19. The sample size is around 130 so might not be very representative but it does say something. Also there has been cases where someone has carried the virus for 20+ days before showing symptoms