1. Add MS 35021, ff 19r-19v Reference (shelfmark): Add MS 35021, ff 19r-19v Title: J. S. Bach: ‘Prelude 22’ and ‘fuga a 4. 22.’ (Prelude and fugue in B flat minor, BWV 891). Autograph. Collection Area: Music Collections Languages: Not applicable Date Range: [1739-1742] Extent: 1 folio
