Heinrich Scheidemann (c. 1595-1663) was a leading composer for the organ and an important forerunner of Buxtehude and J. S. Bach. Scheidemann studied with Sweelinck in Amsterdam and became the organist of the Catharinenkirche in Hamburg. His Dic nobis, Maria is well known.
Discovered on 20-4-1996 in La Silla by Elst, E. W.