“Sail On” is a setting of a text by Thomas Moore for voice and piano by Adolph M. Foerster. The song appears to have never been published. Foerster may have originally considered including it in his songs published in his opus 71. He scratched out “Op. 71, No. 2” on a manuscript in his handwriting dated June 13, 1908. On a separate manuscript he scratched out “Op. 80, No. 1.”