Citations: American Nyckelharpa Association http://www.nyckelharpa.org/ - Wikipedia article~ Nyckleharpa - http://en.wikipedia.org/wiki/Nyckelharpa - European Nyckleharpa Training - http://www.nyckelharpa.eu/index_eng.html

Swedish Bagpipes (Säckpipa) - http://en.wikipedia.org/wiki/Swedish_bagpipes -

Off line media: (printed, books, others): Garland Encyclopedia: Europe, New Grove Dictionary of Music

Noted musicians: Bjorn Bjorn http://www.bjornbjorn.nu/ -