Develop a musical piece employing the provided motif and an alphabet-based structure.
X:1
L:1/8
M:6/8
K:D
['dAG TF>ED']  
X:1
L:1/8
M:6/8
K:D
 B/c/ | dAG TF>ED | dAG TF>ED | E2 F G2 A | BGE E2 B/c/ | dAG TF>ED | dAG TF>ED | D2 E F2 d | 
 ADD"^*" D2 ::  