Hexachordum Apollinis
...that according to the old hexachordal principle, the sixth aria of Hexachordum Apollinis should have been in B-flat major, but the composer Pachelbel wrote it in 1699 as an F minor?
...that according to the old <a href="./Hexachord" id="mwBiA" rel="mw:WikiLink" title="Hexachord">hexachordal</a> principle, the sixth <a href="./Aria" id="mwBiE" rel="mw:WikiLink" title="Aria">aria</a> of <i id="mwBiI"><b id="mwBiM"><a href="./Hexachordum_Apollinis" id="mwBiQ" rel="mw:WikiLink" title="Hexachordum Apollinis">Hexachordum Apollinis</a></b></i> should have been in <a href="./B-flat_major" id="mwBiU" rel="mw:WikiLink" title="B-flat major">B-flat major</a>, but the <a href="./Composer" id="mwBiY" rel="mw:WikiLink" title="Composer">composer</a> <a href="./Johann_Pachelbel" id="mwBic" rel="mw:WikiLink" title="Johann Pachelbel">Pachelbel</a> wrote it in 1699 as an <a href="./F_minor" id="mwBig" rel="mw:WikiLink" title="F minor">F minor</a>?