Formulate a musical piece by utilizing the specified motif and alphabet-based structure.
X:1
L:1/8
Q:1/8=130
M:9/8
K:Bb
['d/c/ BAG GAG GAB', 'Bcd edc', 'd/c/ BAG GAG GAB']  
X:1
L:1/8
Q:1/8=130
M:9/8
K:Bb
 d/c/ | BAG GAG GAB | AGA FGA c2 d/c/ | BAG GAG GAB | cdc cBA B2 :| F | Bcd edc dfF | 
 Bcd edc d2 F | Bcd edc dfd | cdc cBA B2 :| d/c/ | BAG GAG GAB | AGA FGA c2 d/c/ | BAG GAG GAB | 
 cdc cBA G2 :|  