Compose a piece of music following the given alphabetical representation of the musical structure and the provided motif.
X:1
L:1/8
Q:1/8=244
M:4/4
K:Bb
['f<dc<B G3 B', 'g f>dB>d']  
X:1
L:1/8
Q:1/8=244
M:4/4
K:Bb
 z | F>GB>c B3 g | f<dc<B G3 B | F<GB>c B>df>g | f<gd>c c<BB>G | F>GB>c d/c/B/A/ B>g | 
 f<dc<B G3 B | F>GB>c B/c/d/e/ f<b | f<B{Bc}d>c B3 || | z | f>dB>f g<eb>g | f>dc<B c3 g | 
 f>dB>d g<be<g | f<B{Bc}d>c B3 g | f>dB>d e/f/g/a/ b>g | f<dc<B c2 c<d | F>GB>c B/c/d/e/ f<b | 
 f<B{Bc}d>c B3 |]  