Wilfried Gruhn
... that Wilfried Gruhn founded a centre for early childhood music learning in Freiburg, based on the Gordon music learning theory?
... that <b id="mwBwU"><a href="./Wilfried_Gruhn" id="mwBwY" rel="mw:WikiLink" title="Wilfried Gruhn">Wilfried Gruhn</a></b> founded a centre for early childhood music learning in <a href="./Freiburg_im_Breisgau" id="mwBwc" rel="mw:WikiLink" title="Freiburg im Breisgau">Freiburg</a>, based on the <a href="./Gordon_music_learning_theory" id="mwBwg" rel="mw:WikiLink" title="Gordon music learning theory">Gordon music learning theory</a>?