I have an old songbook edited/published in 1922 (Rev. J. Herbert Barlow), called 'The Bach Chorale Book.' So, all of the musical arrangements are his (Bach's), I guess.
I am going to use one of the Easter songs, but I'm not playing Bach's arrangement particularly -- I figured out the chords, and I'll just be chording along with some singing.
So, what's given in the book for this piece is:
words are by C. F. Gellert, 1757, and were translated by Frances E. Cox in 1864
music, A. Hammerschmiedt's Fest-, Bus- und Danck-Lieder, 1658.
So...my question is, am I 'okay' to simply say that it's a Bach piece, or, in giving credit to the song's creator, since I'm just using the chord structure, should I say that it's by Hammerschmiedt?
Personally, I think I'd attribute it to Hammerschmiedt, but I'm just wondering what would typically be done.
For the record, that particular Easter song is in my files, just the lead sheet, under 'Easter.'
