Ultimate Classical Chill Out: The Essential Masterpieces basically delivers what it promises: a large selection of mellow classical music appropriate for unobtrusive background listening. The pieces are from a variety of genres, including orchestral, symphonic, vocal, chamber, and keyboard music. Most are gently lyrical and are from the Romantic and post-Romantic periods, but there are also pieces from the Baroque, Classical, and Modern eras. The performances come from Decca's extensive archive and are consistently top-notch in quality, and the notes identify the performers of each piece. The sound ambience varies somewhat from track to track, but it is never less than very good. This five-disc set with over six hours of music is a good bargain for anyone looking for a broad assortment of quiet classical pieces.
Decca/London introduced Phase 4 Stereo in 1961. For classical music, the Phase 4 approach was based on miking every orchestra section individually, along with mics for selected instruments – up to a maximum of 20 channels, which were then mixed via a recording console. This resulted in a dynamic, in your face sound with relatively little hall ambience. The quality of the sound mostly depended on how skillfully the recording engineer balanced each channel – and the results were not always consistent. Thus, the Phase 4 sound was the antithesis of the minimally miked, “simplicity is wisdom” approach of the RCA’s early Living Stereo and Mercury’s Living Presence recordings, along with Telarc’s early digital recordings.