J.S. Bach

Johann Sebastian Bach, Cantata Auf Christi Himmelfahrt allein, BWV 128 [1725], Catalogue no.1. The autograph manuscript of the full score, the only surviving working manuscript, with annotations also by Bach's eldest son, Wilehelm Friedemann. 
Bodleian Acquires Rare Johann Sebastian Bach Manuscript
Bodleian Libraries has announced the acquisition through the Acceptance in lieu scheme of the autograph of
a first edition of Bach’s Goldberg Variations (1741) (est. £100,000-150,000)
£150,000 Estimate for Rare First Edition of Bach's Goldberg Variations at Auction
Significant J S Bach, Schubert, Mendelssohn, and Brahms musica