Create musical pieces following the given structure and incorporating the suggested musical concept.
X:1
L:1/8
Q:1/4=120
M:4/4
K:Ddor
['D2 A2', 'D2 AG AB c2 BA GF GA'  
X:1
L:1/8
Q:1/4=120
M:4/4
K:Ddor
 D2 A2 (GF) (ED) | C2 G2 (FE) (DC) | D2 A2 A2 GA | (BA) (GF){EF} E2 D2 || AG AB c2 BA | 
 GF GA B2 AG | A2 d2 (cB) (AG) | AG AB{EF} E2 F2 | FG AB cd cA | GF ED CD EC | D2 A2 A2 GA | 
 (BA) (GF){EF} E2 D2 |]  