Create musical compositions adhering to the given structure and incorporating the provided musical concept.
X:1
L:1/8
Q:1/8=180
M:4/4
K:G
['', 'BGdG BGAc', 'Ggde fgag fefd cBAF Ggfa'  
X:1
L:1/8
Q:1/8=180
M:4/4
K:G
 dc |: BGdG BGAc | BGdG Bdgd | BGdG BGAc | BGdB c2 :| A2 | Ggde fdcA | Ggde fgag | fefd cBAF | 
 Ggfa g2 de | fddA fddA | Ggde fgag | fefd cBAF | Ggfa g4 |]  