Formulate a musical piece by utilizing the specified motif and alphabet-based structure.
X:1
L:1/8
M:4/4
K:G
['A2 GE DGBG dGBG', 'eaab agef gage dGBd gfga bg']  
X:1
L:1/8
M:4/4
K:G
 (3ded cd BG (3GFG | EAAG A2 GE | DGBG dGBG | (3ABA GA BGGB | d2 dc dedB | AGAB A2 GE | DGBG dGBG | 
 A2 GA BG G2 :| Bd (3d^cd edBd | eaab agef | gage dGBd | gfga bg g2 | (3gag (3ege (3ded Bd | 
 eaab agef | gage dGBd | gfga bg g2 :|  