Formulate a musical piece by utilizing the specified motif and alphabet-based structure.
X:1
L:1/8
M:2/4
K:D
['AD F/E/D FA d z cA', 'Ad d>e fg e>d cA']  
X:1
L:1/8
M:2/4
K:D
|: AD F/E/D | FA d z | cA AG | EF GF/G/ | AD F/E/D | FA d z | cA GE | ED D z :: Ad d>e | fg e>d | 
 cA AB | cd e>c | Ad d>e | fg e>d | cA GE | ED D z :|  