Compose a musical piece that incorporates the given motif and adheres to the specified form.
X:1
L:1/8
M:6/8
K:G
['B3 cBc dBG GBd', 'b2 g'  
X:1
L:1/8
M:6/8
K:G
 (GA) | B3 cBc | dBG GBd | ece gfg | dec BcA | B3 cBc | dBG GBd | ecb agf | (g3 g2) :: 
[K:D] (f/g/) | a2 f dfa | b2 g dgb | ca b2 g | faf def | a2 f dfa | b2 g dgb | aba gfe | (d3 d2) :|  