An die untergehende Sonne (To the Setting Sun) (D. 457), of May 1817, was nearly the last of Schubert's settings of works by the then-popular poet Ludwig Kosegarten, and it is his only Kosegarten setting that is not strictly strophic. Indeed, An die untergehende Sonne is neither strictly strophic (setting each stanza of the poem to the same music) nor through-composed (setting each stanza to different music), but is rather a hybrid of the two song structures, a sort of rondo-formed song. Kosegarten's thrice-repeated refrain -- "Sun, you are sinking" -- is set as a soft-hued, hymn-like evocation in E flat major at the start of the song and reappears in its center and at its end. Kosegarten's second stanza -- "Calm and tranquil is your parting" -- is set as a luminous arioso in slow triple time in A flat major, and his third stanza -- "The people bless you" -- is set as a lightly moving through-composed song of its own in quick one-in-a-bar B major. The finished work is both a coherent and compelling new type of song. ~ James Leonard, Rovi