Create musical pieces following the given structure and incorporating the suggested musical concept.
X:1
L:1/8
M:2/2
K:Edor
['gbag f2 gf efed', 'GABc dBBA'  
X:1
L:1/8
M:2/2
K:Edor
 (3Bcd | egfe de (3fed | gbag f2 gf | efed BAGA | BdcA B2 (3Bcd | egfe defd | gbag f2 gf | 
 efed BAFB |1 E2 ED E2 :|2 E2 ED E2 |: EF | GABc dBBd | cAAc dBBA | GABc dBBA | Beed e2 EF | 
 GABc dBBA | Beef g2 gf | efed BAFB |1 E2 ED E2 EF :|2 E2 ED E2 ||  