Several of our publications are categorized according to their origin. In choral music, for example, we have the series Collectio Cathedralis (music by the Brussels cathedral choir), Musica Sacra (old editions of the Lemmens Institute), IKV (compulsory works of the International Choir Festival Flanders) and Musicerende Jeugd. Within instrumental music we have several series of Classics (classical music known), in addition to Klezmer music and many other series.