Many of the recordings used to compile this reference edition are early and "historical" - often coming from private collections. Digital Re-mastering has been used to improve and re-construct the original tapes for modern playing equipment. However it was sometimes deemed preferable to leave minor imperfections where excessive intervention in the studio would have sacrificed the natural warmth and obvious authenticity of the original performances. Box Set includes 2-page insert. Vinyl is NM Box is VG+
