Develop musical pieces that conform to the specified format and include the suggested musical theme.
X:1
L:1/8
M:2/4
K:G
['Bc d2 Ac BB d/c/B AG', 'B2 A2'  
X:1
L:1/8
M:2/4
K:G
 Bc | d2 Ac | BB d/c/B | AG AB | A2 Bc | d2 Ac | BB d/c/B | AG AB | A2 |: d/c/B/A/ | GFGA | GD GA | 
 BA Bc | B2 A2 | GG GD | GF GA | B2 A2 | G2 |]  