Compose a piece of music that follows both the given musical theme and the letter-based structure provided.
X:1
L:1/8
M:4/4
K:Ador
['eg a2', 'eg abag e2 ed B2 e2 d2']  
X:1
L:1/8
M:4/4
K:Ador
 AG |"Am" E2 A2 ABcd | e2 d2 c2 A2 |"G" B2 G2 GFGA | BGAG E2 ED |"Am" E2 A2 ABcd | e2 ed e2 ag | 
"G" e2 d2 BedB |"Am" A4- A2 :: eg |"Am" a2 ag e2 eg | abag e2 eg | a2 af"G" g2 ge | 
"Am" dedB A2 eg |"Am" a2 ag e2 eg | abag e2 ed |"G" B2 e2 d2 B2 |"Am" A4- A2 :|  