Compose a piece of music using the specified letter-based musical form and incorporating the assigned motif.
X:1
L:1/16
M:2/4
K:G
['dgfe dcBA GBDG .B2(AG)', 'FADF .A2(GF)']  
X:1
L:1/16
M:2/4
K:G
 Bc | dgfe dcBA | GBDG .B2(AG) | FADF .A2(GF) | GDEF GABc | dgfe dcBA | GBDG .B2(AG) | FGAB cdef | 
 g2g2g2 :: AG | FADF .A2(GF) | GBDG .B2(AG) | FADF .A2(GF) | (3GFE (3DEF | GABc | dgfe dcBA | 
 (3GAB(DG) .B2(AG) | FGAB cdef | g2g2g2 :|  