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:2/4
K:G
["d gg/g/ gg gdBd gg aa b/d'/a/b/", 'dd/^c/ dd/c/ d/e/f/g/ af']  
X:1
L:1/8
Q:1/4=120
M:2/4
K:G
 d | gg/g/ gg | gdBd | gg aa | b/d'/a/b/ ga/b/ | c'bag | f/g/a/f/ dd | Bgfa | g3 :| d/^c/ | 
 dd/^c/ dd/c/ | d/e/f/g/ af | (gb)ag | fdef | gdba | gfed | cc/d/ BB/c/ | Ad/d/ dd/^c/ | 
 dd/^c/ dd/c/ | d/e/f/g/ af | (g[bd][ae])g | fdef | g2 gf | egba | gg/a/ ff/g/ | c2 B2!D.C.! |]  