This volume contains compositions for solo voices accompanied by various instruments (mainly piano), works for choir and piano or solo voices, choir and piano, individual songs for mixed choir or solo voices a cappella, twelve duets with piano accompaniment and the vocal canons. The forty compositions from the œuvre of nearly 250 secular vocal compositions span a period of 27 years, from the previously unpublished cantata "In rührend feierlichen Tönen" MWV E 1 ("Wedding Cantata") by the twelve-year-old to two works from the year of his death in 1847. The focus of the content is on the Duets for two voices with piano accompaniment published by Mendelssohn himself as op. 63. In addition, the volume contains specialities such as Mendelssohn's only setting of a text in Swabian dialect "Jetzt kommt der Frühling" MWV I 1, moreover in an idiosyncratic instrumentation (voice, flute, clarinet, violoncello, two horns), or the "Festgesang" MWV E 2 for choir and piano, which was only discovered in St. Petersburg in 1993 by a collaborator of the Mendelssohn Complete Edition and was completely unknown until then. The vocal canons present wishes, jokes, short messages, thank-you notes or apologies in the form of riddle canons.