Keywords: Bach - WTC I, Prelude in F-sharp Major vi-ii-V-I.png en vi-ii-V-I in Bach's WTC I Prelude in F-sharp own Hyacinth 2012-03-13 File Bach_-_WTC_I _Prelude_in_F-sharp_Major_vi-ii-V-I mid PD-old-100 relicense I-vi-ii-V turnarounds Roman numeral analysis |