Create music using the given musical theme and adhere to the outlined letter-based structure.
X:1
L:1/8
M:2/4
K:Amin
['A>B cd eg ga eg/e/', "ab c'b"]  
X:1
L:1/8
M:2/4
K:Amin
|: A>B cd | eg ga | eg/e/ dB | AB GE | A>B cd | eg ga | eg/e/ dB- |1 Bc BG :|2 BA cB |: ea ab | 
 c'b ae | fa ab | c'b ae | ^fa ab | c'b a2 |1 eg/e/ dB | BA cB :|2 ag ^f=f | ed cB ||  