Create a musical piece using the provided alphabetic structure and motif.
X:1
L:1/8
Q:1/4=80
M:2/4
K:F
['d c']  
X:1
L:1/8
Q:1/4=80
M:2/4
K:F
 A | B3/2 A/ B d | c2 z f | e d c d | G2 z B | B A G d | d c A f | e d c =B | A2 z c | c ^F G A | 
 B3 B | B A G F | d3 e | f A e d | c A F G | A B A G | F3 |]  