Oriģināls: Tres preludis subtils. He agrees with the piano placer Angles Presutto, who wrote to me from Lisbon. Piano Solo sheet music.
Tulkojums: Piano Solo notis. Tres preludis subtils komponējis Marcel Olm. . Notis. 14 pages. Ilgums 8 ". Publicējusi Periferia Music. PF.M-69216-193-6.
