Develop a musical piece that combines the given theme and letter-structured outline.
X:1
L:1/4
M:4/4
K:D
['G (G/A/) B A3 A B3/2 A/']  
X:1
L:1/4
M:4/4
K:D
 D | E3/2 D/ C D | (E F) D (E/F/) | A G (G/A/) B | A3 | A | B3/2 A/ G B | A3/2 G/ F D | 
 A (E/F/) G F | D3 | (E/F/) | G G (G/A/) B | A3 A | B3/2 A/ G B | A (A/G/) F | (D/F/) | 
 A (D/F/) G F | D3 ||  