Sechs Lieder, Op. 4
... that "Im April" from Max Reger's Sechs Lieder, Op. 4, has been called "one of Reger's sunniest songs"?
... that "Im April" from <a href="./Max_Reger" id="mwAzc" rel="mw:WikiLink" title="Max Reger">Max Reger</a>'s <b id="mwAzg"><a href="./Sechs_Lieder,_Op._4" id="mwAzk" rel="mw:WikiLink" title="Sechs Lieder, Op. 4"><i id="mwAzo">Sechs Lieder</i>, Op. 4</a></b>, has been called "one of Reger's sunniest songs"?