The penultimate one of these pieces by this composer closes with a fugue that is interrupted by a reprise of an arioso dolente theme that led into the fugue.
The penultimate one of these pieces by this composer closes with a fugue that is interrupted by a reprise of an arioso dolente theme that led into the fugue. The eighth of them features three instances of an A-flat major theme in its adagio cantabile second movement. Another of these pieces was written after the composer's patron fled Vienna and includes movements labeled "The Absence" and "The Return". Nicknames of these non-Haydn works include "Les (*) Adieux" and "Waldstein", while two others were dubbed "quasi una fantasia". One of those pieces got its nickname after a critic compared it to a night on Lake Lucerne. For 10 points, name these compositions by a German composer for a keyboard instrument, which include the "Pathetique" and "Moonlight".
The penultimate one of these pieces by this composer closes with a fugue that is interrupted by a reprise of an arioso dolente theme that led into the fugue.
{piano sonatas} of Ludwig van {Beethoven} [prompt on partial answer]