Complex sentence: In 1950 Columbia Records released five individual long playing records entitled Great Masters of the Keyboard, Volume I, II, III, IV, and V. The records were all sourced from piano rolls made by The Welte Company of Germany.
Split into simpler sentences: In 1950 Columbia Records released five individual long playing records entitled Great Masters of the Keyboard. They were designated Volume I, II, III, IV, and V. The records were sourced from piano rolls made by The Welte Company of Germany.