Yared
... that the 6th-century musician Yared introduced the concept of sacred music to the Ethiopian Orthodox Church services?
... that the 6th-century musician <b id="mwA5Q"><a href="./Yared" id="mwA5U" rel="mw:WikiLink" title="Yared">Yared</a></b> introduced the concept of <a class="mw-redirect" href="./Sacred_music" id="mwA5Y" rel="mw:WikiLink" title="Sacred music">sacred music</a> to the <a class="mw-redirect" href="./Ethiopian_Orthodox_Church" id="mwA5c" rel="mw:WikiLink" title="Ethiopian Orthodox Church">Ethiopian Orthodox Church</a> services?