Compose a piece of music using the provided motif and follow the designated alphabet character structure.
X:1
L:1/8
Q:1/4=160
M:4/4
K:Dmin
['f2 f2']  
X:1
L:1/8
Q:1/4=160
M:4/4
K:Dmin
"^A""F" c4 c4 | =B2 _A2 G2 F2 |"C" G6 c2 |"Gm" c2 B2 _A2 G2 |"F" c4 c4 | =B2 _A2 G2 F2 |"Gm" G8 | 
 G8 |"F" c4 c4 | =B2 _A2 G2 F2 |"Gm" G8 | G8 |"^B" f2 f2 cccc | f2 f2 cccc | f2 f2 cccc | 
 f2 f2 cccc | ccdc BBcB | AABA G2 G2 | ccdc BBcB | AABA G2 G2 | f2 f2 cccc | f2 f2 cccc | 
 f2 f2 cccc | f2 f2 cccc |]  