What are some good Celtic folk songs?

Good a capella ballads, lullabies, or folk songs?

• So, my boyfriend gets night terrors and panic attacks sometimes in the night, and I recently discovered it's very comforting to him for me to sing. I'd love recommendations for any pop ballads, classical songs, folk songs, or lullabies that sounds beautiful without instrumentals. And it can be English, German, French, or Italian. Even if you just write one or two songs, it's very appreciated, Thanks :)

• Answer:

  well I don't know if you enjoy songs liek this but I listen to the following songs when I can't sleep too well: Stray child || from the anime ".Hack//SIGN" sleepsong || secret garden greensleeves Puff the magic dragon || for little children... but well I like it Guten Abend gute Nacht (though I think you already know that one) and there is a version of "there were roses" I like very much. The song itself is quite sad but when I listen to it, I feel quite comfortable and calm down. EDIT: all those songs are origianlly sung with music but I think they work without music as well.