Craft a musical composition that adheres to the specified musical theme and letter-based structure.
X:1
L:1/4
M:2/2
K:Ddor
['A2 z']  
X:1
L:1/4
M:2/2
K:Ddor
 (A |"Dm" d) d"C" e c |"Dm" d d"Am" A d |"F""C" c c"G" B G |"Am" A2 z (A |"F""C" c) c"G" G F | 
"Am" A A"Eb""C" G c |"F""Am" A A"G" G G |"Am" A2 z (c |"Dm" d) e"F" f e |"Bb""Dm" d d"Am" A d | 
"G" c G"F" F A |"Em""Am" A2 z (A |"Dm" D) D"Am" A A |"G" B B G d |"C" e c"G" B c |"Dm" d2 z2 |]  