Craft a musical piece that abides by the prescribed structural guidelines and the given theme.
X:1
L:1/8
M:9/8
K:Amin
['E2 G G2 E', 'E2 A ABG A3'  
X:1
L:1/8
M:9/8
K:Amin
|: cBA BAG E2 G | G2 E GAG EGA | c2 A BAG E2 A |1 ABG A3 A2 B :|2 ABG A3 A2 G || E2 D C2 D E2 G | 
 G2 E GAG E3 | E2 D C2 D E2 A | ABG A3 GAB | cBA B2 G E2 G | G2 E GAG EGA | c2 A BAG E2 A | 
 ABG A3 A3 ||  