Develop musical pieces that conform to the specified format and include the suggested musical theme.
X:1
L:1/8
M:6/8
K:G
['D G2 GGA_B AAG F2 z FAcc_Bc']  
X:1
L:1/8
M:6/8
K:G
 D | G2 GGA_B | AAG F2 z | FAcc_Bc | _B2 A G2 G | c2 G G2 =F | =F2 _E D3 | EDC D3 | _EDC D3 | 
 G2 FGGD | _E2 D G2 |]  