Compose tunes based on the given letter-based musical structure and the supplied motif.
X:1
L:1/8
Q:1/8=220
M:4/4
K:Ador
['A2 eA', 'BAGB A2 aA', 'cAAG A3', 'c2 gc']  
X:1
L:1/8
Q:1/8=220
M:4/4
K:Ador
 A2 eA BAeA | A2 ed BAGB | A2 eA Bdef | gedc BAGB :| A2 aA gAfA | eAdc BAGB | A2 aA gAfa | 
 gedc BAGB | A2 aA gAfA | eAdc BAGB | ABcd e3 a | gedc BAGB || cAAG A3 B | cAAG BGBd | cAAG A3 f | 
 gfge dBGB :| c2 gc acgc | c2 gc BAGB | c2 gc acga | gedc BAGB | c2 gc acgc | c2 gc BAGB | 
 ABcd e3 a | gedc BAGB :|  