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:2/2
K:G
['BGGB cAAc', 'dBdf ecef fdef']  
X:1
L:1/8
M:2/2
K:G
 d/c/ | BGGB cAAc | BGGc Bdgd | BGGB cAAc | Bgf^c d2 z :| dBdf ecef | fdef f>age | dBdf ecef | 
 fdef g2 fe | dB B2 ec c2 | dB B2 AFDd | edef gage | dBcA G3 ||  