1. Add MS 35021, ff 17r-17v Reference (shelfmark): Add MS 35021, ff 17r-17v Title: J. S. Bach: ‘Praeludium 20’ and ‘Fuga 20’ (Prelude and fugue in A minor, BWV 889). Autograph. Collection Area: Music Collections Languages: Not applicable Date Range: [1739-1742] Extent: 1 folio
