for nyckelharpa music the following centuries, including musicians like Byss-Calle [sv] (Carl Ersson Bössa, 1783–1847) from Älvkarleby. From Uppland, the
60s[when?] revival[clarification needed], which drew on musicians like Byss-Calle from Älvkarleby. The instrument played at this time was not the same as
Slängpolska efter Byss-Calle, Helan Går, Polska efter Pelle Fors, Du gamla, du fria, Herr Holger, Herr Mannelig, Ridmarsch efter Byss-Calle Maya - Xtoles