Piano Concerto
... that Max Reger's Piano Concerto was premiered by Frieda Hodapp in 1910, but has rarely been performed since due to its difficulty?
... that <a href="./Max_Reger" id="mwLQ" rel="mw:WikiLink" title="Max Reger">Max Reger</a>'s <b id="mwLg"><a href="./Piano_Concerto_(Reger)" id="mwLw" rel="mw:WikiLink" title="Piano Concerto (Reger)">Piano Concerto</a></b> was premiered by <a href="./Frieda_Hodapp" id="mwMA" rel="mw:WikiLink" title="Frieda Hodapp">Frieda Hodapp</a> in 1910, but has rarely been performed since due to its difficulty?