Opus 20
... that according to musical analyst Sir Donald Tovey, every page of Opus 20, composed in 1772 by Joseph Haydn , is "of historic and aesthetic importance"?
... that according to <a href="./Musical_analysis" id="mwEyU" rel="mw:WikiLink" title="Musical analysis">musical analyst</a> <a class="mw-redirect" href="./Donald_Francis_Tovey" id="mwEyY" rel="mw:WikiLink" title="Donald Francis Tovey">Sir Donald Tovey</a>, every page of <i id="mwEyc"><b id="mwEyg"><a href="./String_Quartets,_Op._20_(Haydn)" id="mwEyk" rel="mw:WikiLink" title="String Quartets, Op. 20 (Haydn)">Opus 20</a></b></i>, composed in 1772 by <a href="./Joseph_Haydn" id="mwEyo" rel="mw:WikiLink" title="Joseph Haydn">Joseph Haydn</a> <i id="mwEys">(pictured)</i>, is "of historic and aesthetic importance"?