Volckmar Leisring, in the source literature also Volkmar or Leissringk or Leisringius (* around 1588 in Gebstedt; † 1637 in Buchfart) was a German cantor, composer and Lutheran pastor.
Leisring studied theology in Jena from 1606. His friends and fellow students included Johann Matthäus Meyfart and Caspar von Teutleben. During his time in Jena, Leisring had a festive speech printed under the title Corona Musices, i.e. "In Praise of Music." In it, Meyfart praises him as a musician who excels in both theory and practice. After printing various individual works, Leisring published his collection of 5 to 8 part choral settings for use in church services under the title ''Cymbalum Davidicum'' and a musicological work ''Breviarium Artis Musices''. In 1612 he became rector, cantor and town clerk in Schkölen near Weißenfels. Presumably he has contact with the composers Melchior Vulpius and Johann Hermann Schein during these years. In 1618 he became pastor at Nohra in Erfurt and finally in 1629 at Buchfart. Plagued by worries about his daily livelihood in the turmoil of the Thirty Years' War, he presumably did not write any more compositions during his time as a parish priest.
(Wikipedia)

Note: Translated from the German version of Wikipedia into English