who is the first musician mentioned here?
A German music historian, critic and publisher.
Friedrich Chrysander
Karl Franz Friedrich Chrysander (July 8, 1826 – September 3, 1901) was a German music historian, critic and publisher,
the most famous oratorio in the world is messiah written by Composed by George Frideric Handel,with a scriptural text compiled by Charles Jennens. when was this composed? 1741. how many parts are there in this? Three. is there a different edition of it? Yes, there exists different editions like the ones by Friedrich Chrysander and Max Seiffert , Mozart, Goossens and Andrew Davis and others.
wiki:21521633
Friedrich Chrysander [SEP] Introduction
Karl Franz Friedrich Chrysander (July 8, 1826 – September 3, 1901) was a German music historian, critic and publisher, whose edition of the works of George Frideric Handel and authoritative writings on many other composers established him as a pioneer of 19th-century musicology.