Generate a musical piece using the presented motif and follow the alphabetical structure provided.
X:1
L:1/8
M:2/2
K:G
['(3gfg b>g e2 d>c B>cd>Bd G2 G2', 'dcde dBGB c2 Bc AF D2 G2']  
X:1
L:1/8
M:2/2
K:G
 B>d | (3gfg b>g e2 d>c | B>cd>Bd G2 G2 | DGBG DGBG | dcBc A2 d2 | (3gfg b>g e2 d>c | 
 B>cd>Bd G2 G2 | FGAB cBce | dcAF G2 :: (Bc) | dcde dBGB | c2 Bc AF D2 | G2 Bc defg | agfe dcBc | 
 dcde dBGB | c2 Bc AF D2 | G2 Bc dgfg | ecAF G2 :|  