Develop a piece of music by incorporating the provided motif and following the outlined musical structure represented by alphabet characters.
X:1
L:1/8
M:4/4
K:Bb
['g g2']  
X:1
L:1/8
M:4/4
K:Bb
 ggggfgca | g g2 f g4 | c>bcfdcbg | d>ddd c2 ag | f f2 g f4 | ccdc b2 bg | ccdc b2 ba | 
 g g2 g b2 d2 | f f2 d d3 f | g4 f3 g | b2 b2 g>bgf | b4 gf d2 | cB c2 z gf/g/d | ccB/c/d c4 |]  