For 10 points, name this collection of piano pieces by Felix Mendelssohn whose title refers to their lack of vocal accompaniment.
Ignaz Moscheles orchestrated one of these pieces for their composer's funeral. In the first of these pieces, a series of left hand arpeggios accompany a repeated descending four-note motif for the right hand. In another of these pieces, the right hand plays sixteenth notes winding back and forth from A flat to F to represent the motion of a treadle. They include pieces commonly called "Agitation," "Confidence," and "Duetto," although the only of these pieces named by their composer are three Venetian Boat Songs. Published in eight books of six between 1830 and 1845, they include the "Spinning Song" and "Spring Song." For 10 points, name this collection of piano pieces by Felix Mendelssohn whose title refers to their lack of vocal accompaniment.
Ignaz Moscheles orchestrated one of these pieces for their composer's funeral.
Songs Without Words [or Lieder ohne Worte]