Develop musical compositions by respecting the prescribed structure and combining the presented musical concept.
X:1
L:1/8
M:4/4
K:Bb
['B2 dB ecAc B2 df bfdB', '(3dcB bB aBgB', 'cAFA G2 Bd gdBG', 'fGeG (3BcB (3GBd gdBG (3FED cd BDAD'  
X:1
L:1/8
M:4/4
K:Bb
 B2 dB ecAc | B2 df bfdB | egce dfbd | cBAc BFGA | B2 dB ecAc | B2 df bfdB | gecg fdBf | 
 cf=ef gf_ec || (3dcB bB aBgB | (3ded (3Bdf bfdB | (3AGF ef dFcF | (3AcA (3FAc fF (3Ace | 
 (3dcB bB aBgB | (3fgf (3Bdf bfdf | gecg fdBf | ecAF B4 ||[K:G]"^version in G" G2 BG cAFA | 
 G2 Bd gdBG | ceAc BdgB | AGFA GDEF | G2 BG cAFA | G2 Bd gdBG | ecAe dBGd | Ad^cd ed=cA || 
 (3BAG gG fGeG | (3BcB (3GBd gdBG | (3FED cd BDAD | (3FAF (3DFA dD (3FAc | (3BAG gG fGeG | 
 (3ded (3GBd gdBd | ecAe dBGd | cAFD G4 ||  