Create music using the given musical theme and adhere to the outlined letter-based structure.
X:1
L:1/4
M:4/4
K:D
['A,3/2 A,/']  
X:1
L:1/4
M:4/4
K:D
 D, | A,3/2 A,/ A, A, | B,2 A, D | D3/2 F,/ F, F, | A,2 F, E, | F, ^G, A, C | D2 B,2 | A,2 z A, | 
 A,3/2 A,/ C C | E2 C A, | A,3/2 A,/ D D | F2 D A, | A,3/2 A,/ E E | G2 E2 | D2 z |]  