Sweet and Low is a poem by Alfred, Lord Tennyson, set as a part-song in 1863 by Sir Joseph Barnby
In popular culture
The title has been reused used many times, notably for the artificial sweetener brand Sweet'n Low. Mary Higgins Clark's 1989 novel While My Pretty One Sleeps takes its title form the first stanza.
References
Sweet and Low (poem) Wikipedia(Text) CC BY-SA