Samuel Scheidt
(1587 - 1654)German organist and composer. Pupil of Sweelinck in Amsterdam. Organist, Moritzkirche, Halle, from c. 1603; organist and choirmaster to Margrave of Brandenburg in Halle from c. 1609, becoming court conductor 1619. Best known in his day for his vocal works, including cantiones sacrae for 8 voices (1620) and 70 Symphonien auf Conzerten-Manier with 3 voices and basso continuo (1644). Most important was his book of organ music, Tabulatura nova (1624, 3 volumes) proposing staff notation for organ instead of tablature and containing psalms, hymns, chorales, mass, etc. Read more on Wikipedia.