
Johann Sebastian Bach
| BWV | 423 |
| Title | Why art thou troubled, O my heart? |
| Composed | Unknown |
| Scoring | Choir for 4 voices |
| Movements | Chorale: Why art thou troubled, O my heart? |
| Category | Chorale |
| Event | - |
| Author of text | probably by J. S. Bach |
| Text Chorale: Soprano, Alto, Tenor, Bass |
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| Manuscript | Music library, Leipzig; Highschool for Music, Berlin |