The Original Source Series is a new series of celebrated albums reissued on vinyl. The renowned Berlin-based Emil Berliner Studios are remastering 4-track recordings from the 1970s, using their own cutting-edge and 100% pure analogue techniques (AAA) to create versions of the highest possible audio quality. Compared to the original releases, the advantages in sound are outstanding: More clarity, more details and a better frequency response, less noise, less distortion, less compression the highest possible audiophile quality which gives listeners the chance to enjoy this repertoire like never before. This batch presents two recordings with the Berliner Philharmoniker: Griegs Peer Gynt Suites Nos. 1 & 2 and Orchestral Pieces from Sigurd Jorsalfar, conducted by Herbert von Karajan; Rafael Kubelks reading of Dvoks Symphony No. 9 From the New World; and two legendary pianists: Maurizio Pollinis Chopin Prludes To deliver better audio fidelity, the side breaks have been optimized from the original LP release (Nos. 114 on Side 1, Nos. 1524 on Side 2). Friedrich Guldas interpretation of Mozarts Piano Concertos Nos. 20 & 21 with Claudio Abbado and the Wiener Philharmoniker Now presented on 2 LPs to deliver better audio fidelity. Following the success of Piano Concertos Nos. 25 & 27, this issue completes all four Mozart recordings of this fabulous team within The Original Source Series.