Develop musical compositions by respecting the prescribed structure and combining the presented musical concept.
X:1
L:1/8
M:4/4
K:C
['Bdgd BGGB', 'AGG A _B2 BA B2 GA _BABd'  
X:1
L:1/8
M:4/4
K:C
[M:4/4][K:G] eaed a b dg[Q:1/8=180] .uc | Bdgd BGGB | Ac=fc A=FFc | Bdgd BGGB | (3ABc =Fc AGGc | 
 Bdgd BGGB | Ac=fc A=FFc | _B2 BA Bd=fd | cAFB AGG :| A | _B2 BA B2 GA | _BABd cBAB | G^fga gfga | 
 =bgaf defd | gagf d^cde | fdc_B A=F (3FEF | Gg^fg dg=bg |1 fdcA AGG :|2 fdcB AG G2- | G8 |]  