A performance of the cycle takes about 12 minutes. The variety of texts lends itself to variety of music, and questions the concept of 'lullaby'; especially the fourth song, "A Charm", which humorously threatens the child with all sorts of torment if it doesn't go to sleep.
The songs
William Blake (1757–1827) – "A Cradle Song" (Poems from the Notebook, c.1794, verses 1–2 and 4–5 only)[1][2]
Britten, Benjamin (2004). Donald Mitchell (ed.). Letters from a Life: The Selected Letters of Benjamin Britten, Volume III, 1946–1951. London: Faber and Faber. ISBN057122282X.