Johann Sebastian Bach: Chorale No. 168, Warum betrübst du dich, mein Herz, BWV 421 (Bach-Gesellschaft)
| Composer | Johann Sebastian Bach |
| Group Title | Joh. Seb. Bachs vierstimmige Choralgesänge |
| Title | Warum betrübst du dich, mein Herz |
| Number in group | 168 |
| Scholarly catalog num. | BWV 421 |
| Copyright notice | Copyright (c) 1994, 2000 Center for Computer Assisted Research in the Humanities |
| Copyright message | Rights to all derivative editions reserved |
| Copyright message | Refer to licensing agreement for further details |
| Scholarly catalogue | Thematisch-systematisches Verzeichnis der musikalischen Werke Johann Sebastian Bach: Bach-Werke-Verzeichnis (Schmieder) |
| Derived from | Bach Gesellschaft Edition xxxix |
| Encoding state | stage2 |
| Encoding Editor | Steven Rasmussen |
| Initial encoding date | 3 August 1994 |
