Develop a musical creation based on the specified alphabetical structure and given motif.
X:1
L:1/8
Q:1/8=180
M:6/8
K:Bb
['b2 B BAB', 'dff fdB', 'b2 B BAB']  
X:1
L:1/8
Q:1/8=180
M:6/8
K:Bb
 b2 B BAB | GBB FBB | b2 B BAB | GcB AGF | b2 B BAB | GBB FBB | GBB Acc | dBB B3 |: dff fdB | 
 dff fdB | dff fdB | ecc c3 | dff fdB | dff fdB | bag fed | cdB AGF :| b2 B BAB | GBB FBB | 
 b2 B BAB | GcB AGF | b2 B BAB | GBB FBB | GBB Acc | dBB B3 ||  