# Classic Music of the Silver Axe The record surface is in very clean condition, with no scratches, mold, or fingerprints. However, the jacket has age-related yellowing and stains. The jacket itself has no noticeable folds or scratches. Around this time, EMI in particular released many recordings that were originally monaural but were processed to simulate stereo sound using phase differences. While this was impressive at the time, there were mixed opinions. If you have an old audio system, listening in monaural through a single speaker will likely provide a more natural sound.