Create musical compositions adhering to the given structure and incorporating the provided musical concept.
X:1
L:1/8
M:4/4
K:Emin
['c2 cA B2 BA', 'ABcd efge a/g/f/e/ df'  
X:1
L:1/8
M:4/4
K:Emin
 c2 cA B2 BA | GABc dBGB | c2 cA B2 BA | E2 A2 A2 AB | c2 cA B2 BA | GABc dBGB | gfge dBAG | 
 E2 A2 A4 :: ABcd efge | a/g/f/e/ df edcB | ABcd efge | a/g/f/e/ df e2 (3efg | a2 af g2 ge | 
 c2 ce dBGB | cB (2:3:2cBA BA (3BAG | E2 A2 A4 :|  