Build a musical work using the provided motif and following the indicated form.
X:1
L:1/16
M:7/8
K:Bbmin
['B4 c4 d4', 'e4 c4 d4 dc B4 e4 B4'  
X:1
L:1/16
M:7/8
K:Bbmin
 f4 f4 fe d4 | e4 e4 dc B4 | c4 d4 dc B4 |1 e4 B4 cd e4 :|2 e4 B4 B2 B4 |: c4 d4 dc B4 | 
 c4 d4 cd e4 | c4 d4 dc B4 | e4 B4 B2 B4 :|  