Complex sentence: Ellis left the Peterson Trio in November 1958, to be replaced not by a guitarist, but by drummer Ed Thigpen, The year's of 1959 through 1960 found Ellis touring with Ella Fitzgerald.
Split into simpler sentences: Ellis left the Peterson Trio in November 1958, to be replaced not by a guitarist, but by drummer Ed Thigpen. The years of 1959 through 1960 found Ellis touring with Ella Fitzgerald.