Compose tunes based on the given letter-based musical structure and the supplied motif.
X:1
L:1/8
M:4/4
K:Ador
['', 'A2 dA eAdA', 'A2 ab']  
X:1
L:1/8
M:4/4
K:Ador
 (3EFG |: A2 dA eAdA | G2 BG DGBG | A2 dA eAdA | fgdB eBdB | A2 dA eAdA | G2 BG DGDG | EFGE ABce | 
 dBgB (3ded Bc :: A2 ab aecB | A2 af gafa | gc (3ccc GcEc | gc (3ccc gedB | A2 ab aecB | 
 A2 ab c'abf | g3 a bgaf | gedB cABG :|  