Create music using the given musical theme and adhere to the outlined letter-based structure.
X:1
L:1/8
M:4/4
K:Dmix
['D3 G EGAB c2 Bc', 'd2 cA Gc c2 ec c2 GccB', 'ag fd d2 fdad']  
X:1
L:1/8
M:4/4
K:Dmix
 cA | GE E2 D3 G | EGAB c2 Bc | ABAG EG G2 | ABcA d2 cA | GEcE D3 G | EGAB c2 Bc | dBcA BGGc | 
 ABcA d2 :| cA | Gc c2 ec c2 | GccB cBAG | Ad d2 fd d2 | Add^c d=cAG | EGAB cAdB | cAdB c2 Bc | 
 dBcA BGGc | ABcA d2 :| ag | fd d2 fdad | fadf a2 gf | ge e2 gebe | gbeg b2 ag | fd d2 fdad | 
 dcAB c2 Bc | dBcA BGGc | ABcA d2 :|  