Develop a musical piece employing the provided motif and an alphabet-based structure.
X:1
L:1/8
M:2/4
K:G
['GF/E/DD GF/E/DD EEFF G2 G']  
X:1
L:1/8
M:2/4
K:G
 GF/E/DD | GF/E/DD | EEFF | G2 G z | GBBd | dc A2 | Acce | ed B2 | GF/E/DD | GF/E/DD | EEFF | 
 G2 G z |]  