Prelude and Fugue in a minor
From Organ Playing Wiki
Background
Organ and Registration
Fingering and Pedaling
Articulation and Phrasing
Ornamentation
Tempo and Meter
Free Online Recordings
Resources
Scores
http://imslp.org/wiki/8_Kleine_Pr%C3%A4ludien_und_Fugen,_BWV_553-560_(Bach,_Johann_Sebastian)