Bach chorale BWV255 harmonic analysis -Ach Gott und Herr-

New revised analysis of this chorale is here→ Playlist of all chorale analysis videos by me→ Score used for analysis is “389 Choralgesänge“ published by Breitkopf und Härtel . PDF is here(IMSLP)→änge_(Bach,_Johann_Sebastian)#Complete Enjoy!