Develop musical compositions by respecting the prescribed structure and combining the presented musical concept.
X:1
L:1/4
M:4/4
K:Bb
['B B']  
X:1
L:1/4
M:4/4
K:Bb
 F | B, B,/B,/ D D/D/ | F F B B/B/ | d B B F | G3 | A/A/ | B B A B/B/ | G F D F | G/G/ F =E/E/ F | 
 C3 | F | B,/B,/ B, D/D/ F | B B B B/c/ | d B B F | G3 | A/A/ | B B/B/ A B/B/ | G/G/ F D B, | 
 C B, B, B, | B,2 F2 | F3/2 G/ F D | B3 B/A/ | G F D B, | C2 F2 | B3/2 B/(B/A/)(G/F/) | G F E D | 
 C D E F | D F/E/ D F/F/ | B B (B/A/) G/F/ | G F E D | E C B, A, | B,3 ||  