A CD came out in 2009 featuring poems of Robert Louis Stevenson, set to music by various Scottish songwriters: it is entitled "From a Garden of Songs". Very nice album.

Picking up on a post higher up in the thread about Lochnagar, mentioning Irish connections: Lochnagar is one of the biggest mountains in the Grampians (Scotland) and Byron did spend some time in Scotland, and, I believe, have some Scots in his family. Dark Lochnagar is a challenging song to sing because of its big range.