Create music compositions that adhere to the given structure and incorporate the provided musical concept.
X:1
L:1/8
M:2/4
K:G
['BBBB B2 BA AcBA G2 z B/B/']  
X:1
L:1/8
M:2/4
K:G
 BBBB | B2 BA | AcBA | G2 z B/B/ | AGFA | Addd | dddd | dedc | BBBB | BBAB | ddcA | G2 z2 |]  