Develop a musical composition in line with the given structure and theme.
X:1
L:1/4
Q:1/4=200
M:3/4
K:Gmix
['d2 d (d c) A B2 c', '(B3/2 A/) G'  
X:1
L:1/4
Q:1/4=200
M:3/4
K:Gmix
 G d2 | d (d c) | A B2 | c (B A) | G B2 | (B/A/) G2 | F (A3/2 B/) | A3 | A d2 | d (d c) | A B2 | 
 c (B A) | G B2 | (B/A/) G2 | F A2 | G3 || (B3/2 A/) G | F (A3/2 B/) | c (B A) | (B3/2 A/) G | 
 (B3/2 A/) G | F A2 | (B/A/) (G F) | G3 | (B3/2 A/) G | F (A3/2 B/) | c (B A) | (B3/2 A/) G | 
 (B3/2 A/) G | F A2 | (B/A/) (G F) | G3 | G d2 | d (d c) | A B2 | c (B A) | G B2 | (B/A/) G2 | 
 F (A3/2 B/) | A3 | A d2 | d (d c) | A B2 | c (B A) | G B2 | (B/A/) G2 | F A2 | G3 ||  