The Collaborative International Dictionary of English v.0.48:
Lied \Lied\ (l[=e]t), n.; pl. Lieder (l[=e]"d[~e]r). [G.] (Mus.) A lay; a German song. It differs from the French chanson, and the Italian canzone, all three being national. [1913 Webster] The German Lied is perhaps the most faithful reflection of the national sentiment. --Grove. [1913 Webster]