Mass in B minor
... that Johann Sebastian Bach reworked music from more than three decades earlier for the central piece Crucifixus in the symmetrical structure of his Mass in B minor?
... that <a href="./Johann_Sebastian_Bach" id="mwBMc" rel="mw:WikiLink" title="Johann Sebastian Bach">Johann Sebastian Bach</a> reworked music from more than three decades earlier for the central piece <i id="mwBMg">Crucifixus</i> in the symmetrical structure of his <b id="mwBMk"><a href="./Mass_in_B_minor_structure" id="mwBMo" rel="mw:WikiLink" title="Mass in B minor structure">Mass in B minor</a></b>?