Literature.

T. Overskou, Den danske Skueplads, I-VII (Copenhagen 1854-76)
C. Thrane, Cæciliaforeningen og dens stifter (Copenhagen 1901)
N.M. Jensen, Den danske romance 1800-1850 og dens musikalske forudsætninger (Copenhagen1964)
J. Bergsagel, "The Impact of Italy on Danish Music", Thorvaldsens Museum Bulletin 1997, 154-60
E. Moldrup, Guitaren. Et eksotisk instrument i den danske musik (Copenhagen 1997)
I. Olsen, Preface to Værker for guitar, bd. 1 (Copenhagen )
B. Jeffery, Fernando Sor, Guitarist and Composer (London1977)
Thanks to professor dr. phil. John Bergsagel for the incredible help with the final work on this article.