Compose tunes based on the given letter-based musical structure and the supplied motif.
X:1
L:1/8
M:6/8
K:G
['BAB GEF G2 A Bee dBA', 'def g3 fed Bee e2 f gfe']  
X:1
L:1/8
M:6/8
K:G
 d2 B BAB | GEF G2 A | Bee dBA | Bef gfe | dBB BAB | GEF G2 A | Bee dBA |1 BGF Gfe :|2 BGF GBd |: 
 gag fed | Bdd def | g3 fed | Bee e2 f | gfe fed | Bdd def | gfg aga |1 bgf gef :|2 bgf gfe ||  