Oorspronklik: American Concert Piano Music. The Thunderer. Version 2.0. Various. Piano Solo sheet music. American Concert Piano Music. Version 2.0.
Vertaling: Amerikaanse Concert Piano Music. Vier en twintig Negro Melodies, Op. 59 - O, hy maak 'n Swak Lazarus. Weergawe 2.0. Verskeie.