Craft a piece of music that integrates both the suggested theme and letter-based structure.
X:1
L:1/16
Q:1/4=120
M:3/4
K:Ddor
['(DEGAB) (c4 A4){e} (f2e2) (d2c2 A2)(G2 E2D2)', 'A8 (DEFGABcde) (f2>g2){e} (f2e2) (d/e/d/c<de/) f2>d2 e2>d2']  
X:1
L:1/16
Q:1/4=120
M:3/4
K:Ddor
"^Slow" (DEGAB) | (c4 A4){e} (f2e2) | (d2c2 A2)(G2 E2D2) | (D2E2){E} (F2E2 D2C2) | D8 (ABcde) | 
 (f2g2){e} (f2e2) (dedcd) | e2d2{e} (fedc) (A2c2) | (d2>e2) (fde)(c dcAGc) | A8 || (DEFGABcde) | 
 (f2>g2){e} (f2e2) (d/e/d/c<de/) | f2>d2 e2>d2 (dcAG | AcdcAG) (E2>D2) (D4 | D8) (DEGAB) | 
 c4 A4{e} (f2>e2) | (d2c2 A2)(G2 E2D2) | (D2F2){F}(E2>D2) (3C2D2E2 | D8 ||  