Generate a musical piece using the presented motif and follow the alphabetical structure provided.
X:1
L:1/8
M:2/4
K:D
['aA AB/=c/ d/=c/B/A/']  
X:1
L:1/8
M:2/4
K:D
|: d/e/ |"D" ff fe/d/ |"Em" gg"A7" gf/e/ |"D" ff fe/d/ | fa ad/e/ |"D" ff"Bm" fe/d/ | 
"Em" gg"A7" gf/e/ |"D" f/g/a/f/"Bm" ed |"G" Bd"D" d :: f/g/ |"D" aA AB/=c/ |"G" d/=c/B/A/ Gf/g/ | 
"D" aA aA | fa af/g/ |"D" aA AB/=c/ |"G" d/=c/B/A/ Gg |"D" f/g/a/f/"Bm" ed |"G" Bd"D" d :|  