Compose a piece featuring the specified motif and using an alphabet-based arrangement.
X:1
L:1/8
M:none
K:F
['[Ac]2 [FA]2 [Bd]2 [GB]2 [ce]2 [ce][df]']  
X:1
L:1/8
M:none
K:F
 (3[cA][=B^G][_B=G] |[M:2/4]"F" [FA]2 [CF]2 |"C7" [GB]2 [EG]2 | 
[M:3/4]"F" [FA][Ac] [Ac]2"C7" [GB]2 |"F" [FA]2 [EG][DF]"C7" [CE]2 |[M:2/4]"F" [FA]2 [CF]2 | 
"C7" [GB]2 [EG]2 |[M:3/4]"F" [CF][Ac] [Ac][FA]"C7" [GB][EG] |"F" [FA]3 z ::"C7" [FA][GB] | 
[M:2/4]"F" [Ac]2 [FA]2 |"Gm" [Bd]2 [GB]2 |[M:3/4]"C7" [ce]2 [ce][df] [ce][Bd] | 
"C7" [GB]2 [GB][EG] [CE]2 |[M:2/4]"F" [Ac]2 [FA]2 |"Gm" [Bd]2 [GB]2 | 
[M:3/4]"C7" [ce]2 [ce][df] [ce][Ac] |"F" [FA]3 z :|  