Compose tunes based on the given letter-based musical structure and the supplied motif.
X:1
L:1/8
Q:3/8=110
M:6/8
K:D
['Add dfa', 'AFD DFA']  
X:1
L:1/8
Q:3/8=110
M:6/8
K:D
 A | Add dfa | Add dfa | A>BA AGF | EEE E2 A | Add dfa | Add dfa | ABA GFE | DDD D2 :: F/G/ | 
 AFD DFA | AFD DFA | DFA dfa | gee e2 F/G/ | AFD DFA | AFD DFA | DFA dfa | gec d2 :|  