Construct a musical piece that contains the provided motif and abides by the prescribed alphabetical scheme.
X:1
L:1/8
M:4/4
K:G
['B2 G2 GBAG FA c2 cedc', "G2 (3def gdBd gbag afdf ac'ba bgaf"]  
X:1
L:1/8
M:4/4
K:G
 dc | B2 G2 GBAG | FA c2 cedc | Bdef gbag | f2 d2 dedc | B2 G2 GBAG | FA c2 cedc | Bdeg fdec | 
 B2 G2 G2 :: (3def | gdBd gbag | afdf ac'ba | bgaf geag | f2 d2 d2 gf | edcB c2 ag | 
 fedc B2 (3def | gdec dBcA | B2 G2 G2 :|  