Compose tunes based on the given letter-based musical structure and the supplied motif.
X:1
L:1/8
Q:1/4=140
M:2/2
K:Ador
['EAGB A2 A>G']  
X:1
L:1/8
Q:1/4=140
M:2/2
K:Ador
"Am" ABcA"G" BcdB |"Em" efge"G" dBGB |"Am" c2 a>c"Em" B2 g>B |"Am" A2 c>A"Em" GFGE | 
"Am" ABcA"G" BcdB |"Em" efge"G" dBGB |"Am" cBcA"Em" EAGB |"Am" A2 A>G A4 ::"Am" agab a2 e2 | 
 agab a3 e |"Em" gfga"Em" gbag |"D" f2 d>e d3 B |"Am" cBcA"Em" B2 E2 |"Am" cBcA"Em" B2 E2 | 
"Am" cBcA"Em" EAGB |"Am" A2 A>G A4 :|  