: The .m4v extension indicates it is an Apple-standard video container, often found in older digital archives or uploads like the recording on YouTube by user "Women Of WW2". Historical Significance
: As a "miniature" prelude typical of the Orgelbüchlein , the performance usually lasts between 1 to 2 minutes. 621.m4v
It is part of Bach's Orgelbüchlein (Little Organ Book), a collection of 46 chorale preludes written primarily during his time in Weimar. Core Features of "621.m4v" 621.m4v
The file refers to a digital recording of the organ chorale prelude "Da Jesus an dem Kreuze stund" (When Jesus stood by the Cross), composed by Johann Sebastian Bach . 621.m4v
: It corresponds to BWV 621 in the Bach-Werke-Verzeichnis (Bach Works Catalogue).