When Columbia released All I Know as a single, they butchered the ending because they feared people would not sit still for its full length and might change the station. Its very difficult to find recordings of the album version, but I managed to locate one. At the end, the piano resolves the songs line, slowly and gently, into a beautiful and serene C Major cadence. Its a masterpiece, and one of the very best songs Webb ever wrote.
The Grace Cathedral organ makes a fine addition to this song.