Noter
Original
Beethoven, Ludwig van. Piano Sonata No.4. Op.7. Beethoven, Ludwig van. Piano solo. Main sheet music. version from Boston. Oliver Ditson & Co., 1876. Plate 29904.
Oversettelse
Beethoven, Ludwig van. Piano Sonata No.4. Op.7. Beethoven, Ludwig van. Piano solo. Hoved notene. versjon fra Boston. Oliver Ditson. Plate 29904.