Complex sentence: In 1926, Mr. Kresa began working for Berlin, where he transcribed what Berlin was playing into musical manuscript form as Berlin could neither read nor write music, eventually becoming the general professional manager of the Irving Berlin Music Company.
Split into simpler sentences: In 1926, Mr. Kresa began working for Berlin, where he transcribed what Berlin was playing into musical manuscript form as Berlin could neither read nor write music. Eventually becoming the general professional manager of the Irving Berlin Music Company.