Sony’s president decided a CD should contain the longest recorded version of Beethoven’s Ninth Symphony, which is 74 minutes. Posted on November 21, 2013 by admin Sony’s president decided a CD should contain the longest recorded version of Beethoven’s Ninth Symphony, which is 74 minutes. VN:F [1.9.22_1171]please wait...Rating: 0.0/5 (0 votes cast)VN:F [1.9.22_1171]Rating: 0 (from 0 votes)