Construct a musical work by incorporating the designated motif and the alphabet-based framework.
X:1
L:1/4
Q:1/4=120
M:3/4
K:Eb
['B B g f e G B', 'B A F d']  
X:1
L:1/4
Q:1/4=120
M:3/4
K:Eb
"^Moderato." B | B g f | e G B | A F d | e g B | B g f | e G B | A F d | e2 :: B | A F d | e g B | 
 A F d | e g B | B g f | e G B | A F d | e2 :|  