https://www.youtube.com/watch?v=aNfjxNm9hVo
This is one of Li Tai Hsiang's early albums. It's over 30 minutes long and it contains 3 songs each over 10 minutes long. The third song contains variations on the track "马车夫之恋" (which was played at the beginning of "Magnificent Butcher"), many of which were played throughout "Magnificent Butcher".
I happened to find this album while looking through Li Tai Hsiang's songs to find the two I wanted. I haven't found them and I suspect they might not have been his. It does sound similar to his style, but none of his early albums (pre-1980) have the two songs.