Craft a piece of music that integrates both the suggested theme and letter-based structure.
X:1
L:1/8
M:6/8
K:D
['A (Af)f', 'A2 G', 'd3 c3 (ec).^A (Bd).f (ge).c (B3 ^A2)']  
X:1
L:1/8
M:6/8
K:D
 A | (Af)f (cd)d | (A3 A2) B |{B} A2 F{B} A2 F | A2 G E2 A | (Af)f (ce)d | B3 (BAG) | (FAA) (AGE) | 
 (E3 D2) || F | (GEG) A2 G | (Fad) f2 d | (gec) A2 G | (FB)A A2 F | (GEG) A2 G | (FAd) f2 d | 
 ceg (ba).c | (e3 d2) ||"^Minore" !fermata!F | B3 d3 | c3 (ec).^A | (Bd).f (ge).c | (B3 ^A2) F | 
 B3 d3 | G3 c2 e | d2 B c2 ^A | (B3 B2)!D.C.! ||  