Works for solo piano and string quartet performed by pianist Benjamin Moser and the Borromeo String Quartet.Mendelssohn: Four Songs Without WordsMendelssohn: String Quartet in A minor, Op. 13First up: excerpts from the composer’s famous Songs Without Words. The origin of this set of lieder for piano is still a bit mysterious. The New Grove dictionary postulates that it may have been a bit of an inside joke between Felix and his sister, who used to improvise words to their favorite piano pieces. Regardless, they are lovely little gems. Next at bat: String Quartet in A minor. Though it was the second quartet published, this work was actually the first Mendelssohn wrote in the genre. The 18-year-old composer—like many in his generation—was living in the shadow of Beethoven, and it shows. Like Beethoven, Mendelssohn develops a single theme—a quote from his own song “Ist es wahr?”—over the course of the entire piece.