Utilizing the provided musical theme and letter-based structure, compose a piece of music.
X:1
L:1/8
M:2/2
K:Amin
['cBAE- E2 AB cBAF- F4 G2 B2-']  
X:1
L:1/8
M:2/2
K:Amin
 AB |"Am" cBAE- E2 AB |"F" cBAF- F4 |"G" G2 B2- Bc- cG | B2 Bc- cBAB |"Am" cBAE- E2 AB | 
"F" cBAF- F4 |"G" G2 B2- B c2 A |1 Bc B2"Am" A2 :|2 Bc B2"Am" A4 |:"F" FAcA dAcA | FAcd _edcA | 
"Am" EABA cABA | EABc dcBA |"F" FAcA dAcA | FA_ed cAFA |1"G" B3 B- Bc d2 |"E7" e8 :|2 
"G" GABc BA G2 |"Am" A8 |]  