Create a musical piece with the provided alphabetic notation system and theme.
X:1
L:1/8
M:3/4
K:Bb
['cA F2 e2 ec d2']  
X:1
L:1/8
M:3/4
K:Bb
 Bd f2 f2 | fd e2 c2 | cA F2 e2 | ec d2 B2 | FB d2 d2 | dd e3 c | cA F2 e2 | ec d2 B2 |]  