Piano Sonata No. 2
... that although Dmitri Shostakovich initially dismissed his own Piano Sonata No. 2 as a "trifle, something impromptu", he would later consider it his most important piano composition?
... that although <a href="./Dmitri_Shostakovich" id="mwCVI" rel="mw:WikiLink" title="Dmitri Shostakovich">Dmitri Shostakovich</a> initially dismissed his own <b id="mwCVM"><a href="./Piano_Sonata_No._2_(Shostakovich)" id="mwCVQ" rel="mw:WikiLink" title="Piano Sonata No. 2 (Shostakovich)">Piano Sonata No.<span id="mwCVU" typeof="mw:Entity"> </span>2</a></b> as a "trifle, something impromptu", he would later consider it his most important piano composition?