Compose a piece of music using the provided motif and follow the designated alphabet character structure.
X:1
L:1/8
Q:1/4=120
M:4/4
K:D
['', 'D<B, B,>C', "b>c' d'>c'"]  
X:1
L:1/8
Q:1/4=120
M:4/4
K:D
 F |: D<B, B,>C D>EFB | A>FF>E DA,A,(F/E/) | D<B, B,>C D>E Fg | f>d (e/d/)c/d/ B2 Bc/d/ | 
 D<B, B,>C D>EF>B | A<F F>E DE/F/ A,(F/E/) | D<B, B,>C D>E Fg | f>d (e/d/)c/d/ (B2 B) :| f/^a/ | 
 b>c' d'>c' b>=af>d | a<f f>e dAAf/^a/ | b>c' d'>c' b>a f/^a/b/c'/ | 
 d'f (e/d/)(c/e/) B/d/f/d/ B(d/e/) | f[fd'][fd']e/>d/ c[ca][ca]d/>c/ | 
 [DB]>c d/c/d/^e/ f[F^A][F^A] D/=E/ | [DF][DF][DF] (C/D/) [CE][CE][CE] (D/C/) | 
 B,/C/D/^E/ F<^A, (B,2 B,) ||  