Create a musical piece that integrates the provided motif and follows the prescribed alphabetical structure.
X:1
L:1/8
Q:1/2=90
M:4/4
K:F
['FGAB cAfd cBAG', 'afed gedc']  
X:1
L:1/8
Q:1/2=90
M:4/4
K:F
 C2 | FGAB cAfd | cBAG F4 | cdef gaba | gf (ef/g/) f4 | FGAB cAfd | cBAG F2 C2 | DFEG FdcB | 
 A2 F2- F2 :: (f/g/) | afed gedc | fdcB{B} A2 GF | afed efga | (3(edc) (3(dc=B) c4 | afed gedc | 
 fdcB AGFE | FCB,A, B,dcB | A2 F2- F2 :|  