The Celtic Sea (Irish: An Mhuir Cheilteach; Welsh: Y Môr Celtaidd; Cornish: An Mor Keltek; Breton: Ar Mor Keltiek; French: La mer Celtique) is the area of the Atlantic Ocean off the south coast of Ireland bounded to the east by Saint George's Channel; other limits include the Bristol Channel, the English Channel, and the Bay of Biscay, as well as adjacent portions of Wales, Cornwall, Devon, and Brittany. The southern and western boundaries are delimited by the continental shelf, which drops away sharply.

The Celtic heritage of the bounding lands to the north and east gives the sea its name, first proposed by E. W. L. Holt at a 1921 meeting in Dublin of fisheries experts from England, Ireland, Scotland and France. The northern portion of this sea had previously been considered as part of Saint George's Channel and the southern portion as an undifferentiated part of the "Southwest Approaches" to Britain. The need for a common name came to be felt because of the common marine biology, geology and hydrology. It was adopted in France before being common in the English-speaking countries. It was adopted by marine biologists and oceanographers, and later by oil exploration firms. It is named in a 1963 British atlas, but a 1972 article states "what British maps call the western approaches, and what the oil industry calls the Celtic Sea [...] certainly the residents on the western coast [of Great Britain] don't refer to it as such."

Lisa Lynne is a Celtic harpist, a composer and New Age recording artist residing in Los Angeles, California. She is a self-proclaimed multi-instrumentalist who has "spent the last eighteen years pursuing her passion for the Celtic harp." [1]

Lynne released her first solo albums, starting in 1992, as Lisa Franco on the German label Innovative Communication. Also in the early 90's, she became part of the group Celestial Winds, with David Young, releasing a number of albums. Since 1998, Lynne has released albums of Celtic harp music on New Earth Records, Windham Hill and her own label, Lavender Sky Music. Her 2003 release, Hopes & Dreames (New Earth Records) reached #6 on Billboard Magazine's Top New Age Albums chart.

In 2002, Lynne became the first musician-in-residence at City of Hope National Cancer Center in Los Angeles. Her program "Hands on Harps," integrates music in the treatment programs at City of Hope.

Music from her Love & Peace album was used in Alone in the Wilderness, a documentary from filmmaker Bob Swerer that aired on PBS, chronicling the life of Richard Proenneke in the Alaskan wilderness.