The Piano Concertos

Previously released as MS 7143 and MS 6967. This set mastered at Customatrix as identified by a very small "o" in the runouts. These marks usually (but not always) appear in front of the runout data and are often extremely faint - sometimes of the point of being nearly invisible and requiring a hand lens to discern (see attached detail photo in the images file). They can also occur elsewhere in the runout string. See https://www.discogs.com/label/586613-Customatrix. Side B of the first disc (136628) is stamped with a "P" indicating Pittman as the pressing plant for that particular side only. It was not entirely unusual for Columbia to press one side of a disc at one plant and then ship the incomplete discs to another plant for pressing the second sides.