Develop a musical composition incorporating the given motif while adhering to the outlined alphabetical form.
X:1
L:1/8
Q:1/4=120
M:4/4
K:G
['dBBG AGAB', "g>abb c'b"]  
X:1
L:1/8
Q:1/4=120
M:4/4
K:G
 g | dBBG AGAB | d>BBg f2 e>g | dBBG AGAB | dD F/E/D/E/ G2 G :| d | g>abb c'b b/a/g/e/ | 
 g>abb c'2 ba | g>abb c'b ab/c'/ | d'de>f g2 g>d | g>abb c'b b/a/g/e/ | g>abb c'2 bc' | 
 d'>bc'>a b>g g/f/e/f/ | f>d e/d/B/d/ e2 e |]  