Create a musical piece with the provided alphabetic notation system and theme.
X:1
L:1/8
M:2/2
K:G
['BG{A}GB AFDE FEFG', 'G2 (Bc) dgga bgaf dcde']  
X:1
L:1/8
M:2/2
K:G
 (dc) | BG{A}GB AFDE | FEFG Adgd | BG{A}GB AGFA | (3(Bcd) cA G2 dc | BG{A}GB AFDE | 
 FEFG (3(ABc) de | f2 fd ecAc | BGAF G2 || (Bc) | dgga bgaf | dcde fdcA | dgga bgag | 
 fdcA G2 (Bc) | dgga bgaf | dcde fefg | abag fgag | fdcA G2 |]  