Craft a piece of music that integrates both the suggested theme and letter-based structure.
X:1
L:1/16
M:4/4
K:C
['.A6 .B6']  
X:1
L:1/16
M:4/4
K:C
 A4 | D4 (A3 B) c6 E2 | (F3 D) (E3 C) D4 (3A6 .A6 .B6 .A6 .B6 .c6 | .d4 (d3 B) G4 (d3 c) | 
 A12 (3A6 .A6 .B6 .A6 .B6 .c6 | (.d3 e) (d3 c) (A3 B) c3 E | 
 F4 (3E6 .E6 .D6 .E6 .D6 .E6 .D4 (D3 E) | (F3 G) (c3 B) A4 (G3 E) | D12 |]  