Develop a musical arrangement based on the stated alphabetical form and the given motif.
X:1
L:1/8
M:6/8
K:Bb
['B2 c']  
X:1
L:1/8
M:6/8
K:Bb
 F | F2 EDFB | B2 c A2 F | FAccde | e2 f d2 B | c2 ccdc | B2 c d2 d | e2 eefe | d4 z |]  