Develop a musical composition in line with the given structure and theme.
X:1
L:1/8
Q:1/8=120
M:4/4
K:D
['A2 Bc']  
X:1
L:1/8
Q:1/8=120
M:4/4
K:D
 FG | A2 AF A2 Bc | d>e (3dcB (3AFB BA | B2 de f2 ed | BA FE FA AF |[M:2/4][Q:1/8=120] A2 Bc | 
[M:4/4][Q:1/8=120] d>e (3dcB (3AFB BA | B2 (3Bcd F2 G/ E3 |[M:2/4][Q:1/8=120] D2- DG | 
[M:4/4][Q:1/8=120] A2 AF A2 Bc | de dB B2 BA | B2 de f2 ed | BA FE FA AF | 
[M:2/4][Q:1/8=120] A2 Bc |[M:4/4][Q:1/8=120] d>e (3dcB (3AFB BA | B2 Bd F2 E2 | 
[M:2/4][Q:1/8=120] D2- Dg |[M:4/4][Q:1/8=120] fa ab a2 fd | fb ba b2 (3abc' | d'2 fa b2 de | 
 f2 ed BA FE | fa ab a2 fd | fb ba b2 (3abc' | d'2 fa b2 de | f2 e2 d4 ||  