there is a well known song about the famine called Skibbereen

Jimmy Crowley sings in both English and Irish, and his repertoire is very Cork orientated.

Well-known musicians/singers Peadar O Riada and Iarla O Lionnáird are both from the Cúil Aodha Gaeltacht, which is to the west of Co. Cork, near Co Kerry.

a country-Irish song Beautiful West Cork (Colin Cronin)

https://www.libraryireland.com/WestCorkHistory/Music.php
W O'Halloran, "Early Irish History and the Antiquities and History of West Cork", 1916.

poet J.J. Callanan http://www.deepmapscork.ie/past-to-present/art-literature/jeremiah-joseph-callanan-poet/
https://ajd8.wordpress.com/2015/01/30/gougane-barra-by-jeremiah-joseph-callanan/
Callanan's best known song though is not one of his poems set in W Cork, but rather his translation of Príosún Chluain Meala, The Jail of Clonmala aka The Convict of Clonmel. He also translated an Irish language lyric The Outlaw of Loch Lene, which is in Westmeath. I don't know if any Callanan poems about places (and people in those places) such as Gougane Barra, Gaskinane and Inchidony have been set to music.