Compose tunes based on the given letter-based musical structure and the supplied motif.
X:1
L:1/8
M:2/2
K:G
['A G3']  
X:1
L:1/8
M:2/2
K:G
 A G3 AGFG | D G3 ABcB | A G3 AGDE | =F3 G ABcB | A G3 AGFG | D G3 A3 B | A G3 AGDE | =F3 G ABcA | 
 d g3 agfg | d g3 fdcA | d g3 agfe | d2 eg fdcA | d g3 agfg | abag f3 g | afge fdec | d2 eg fdcB |]  