Ralf Otto
... that Ralf Otto, director of the Bachchor Mainz from 1986, conducted world premiere recordings of cantatas by Bach's son Wilhelm Friedemann Bach?
... that <b id="mwB0Q"><a href="./Ralf_Otto" id="mwB0U" rel="mw:WikiLink" title="Ralf Otto">Ralf Otto</a></b>, director of the Bachchor Mainz from 1986, conducted world premiere recordings of cantatas by Bach's son <a href="./Wilhelm_Friedemann_Bach" id="mwB0Y" rel="mw:WikiLink" title="Wilhelm Friedemann Bach">Wilhelm Friedemann Bach</a>?