Develop musical pieces that conform to the specified format and include the suggested musical theme.
X:1
L:1/8
M:4/4
K:G
['D G>B Bc d2 ef g2 fe', 'z A (AG) FG A3 d BB'  
X:1
L:1/8
M:4/4
K:G
 D | G>B Bc d2 ef | g2 fe d2 B2 | cc (Ac) BB GB | AA FA G2 z || A | (AG) FG A3 d | BB GB d3 B | 
 cc ee d2 g>B | B-B AA G2 z ||  