Suo Gan is a traditional Welsh lullaby written by an anonymous composer. Though the lyrics are comforting and warm, the beautiful melody has a distinctly haunting quality. The first verse (in Welsh) goes:

Huna blentyn yn fy mynwes,

Clyd a chynnes ydyw hon;

Breichiau mam sy'n dyn am danat,

Cariad mam sy dan fy mron;

Ni cha dim amharu'th gyntun,

Ni wna undyn â thi gam;

Huna'n dawel, anwyl blentyn,

Huna'n fwyn ar fron dy fam.

"Suo Gan," as performed by James Rainbird and the Richard Williams Singers, was featured prominently in the film Empire of the Sun, directed by Steven Spielberg and written by Tom Stoppard and Menno Meyjes (based on the autobiographical novel by J. G. Ballard).