Compose tunes based on the given letter-based musical structure and the supplied motif.
X:1
L:1/8
M:2/2
K:D
['', '(fg)S a2 (af) gbag fefa gfef dcde', 'd2 dd', 'a2 (af)', 'gfef dcde fdec dedc A2 (fg) a2', 'gbag fefa gfef dcde fdec dedc AGFG', 'd2 dd']  
X:1
L:1/8
M:2/2
K:D
 (fg)S |: a2 (af) gbag | fefa gfef | dcde fdec | dedc AGFG || ABcA dcAG | FEFG ABcA | dcdf edce |1 
 d2 dd defg :|2 d2 dd d2 |: A2 | dcde fefg | a2 (af) defg | a2 (af) ggag | f2 (fe) defg || 
 a2 (af) gbag | fefa gfef | dcde fdec | dedc A2 |] (fg) | a2 (af) gbag | fefa gfef | dcde fdec | 
 dedc AGFG || ABcA dcAG | FEFG ABcA | dcdf edce |1 d2 dd d2 :|2 d2 dd defSg |]  