Craft a piece of music that integrates both the suggested theme and letter-based structure.
X:1
L:1/8
M:3/2
K:Amin
['f2 e2', 'A2 e2']  
X:1
L:1/8
M:3/2
K:Amin
 d2 | A2 E2 E2 A2 c4 | dcBc A2 c2 e3 f | e2 ae f2 e2 d2 c2 | B4 A2 e2 f2 e2 | d4 c4 z2 :| B2 | 
 edcB cd c2 dcBA | Bc B2 cBA^G AB A2 | z2 e2 fedc g2 G2 | c4 c4 efef | g2 g2 gfed c4 | 
 cdcd e2 e2 edcB | A2 e2 A2 e2 dcBA | A8 z2 ||  