Create music compositions that adhere to the given structure and incorporate the provided musical concept.
X:1
L:1/8
Q:1/2=100
M:4/4
K:D
['B d3 e d>Bg>B dBgB aA-AB d^cde', 'DGBG AGBG', '(dg)(bg) (ag)(bg) (dg)(bg) (ag)(eg)', '(gf).e.d efga'  
X:1
L:1/8
Q:1/2=100
M:4/4
K:D
|:"^A""^Lively." B | d3 e d>Bg>B | dBgB aA-AB | d^cde dBgB | (AB/c/) BA BGG :|"^B" B | DGBG AGBG | 
 DGBG AGAB | DGBG AGBG | Dedc BGGG | DGBG AGBG | DGBG AGEc | BAGF GFED | EFGA BGG ||"^C" B | 
 d3 e dBgB | dBgB a"_NB1"AAB |"_NB2" (d^c)de dBgB | (AB/c/) BA BGGg | (dg)(bg) (ag)(bg) | 
 (dg)(bg) (ag)(eg) | (dg)(ag) (ag)(bg) | d>edc BGG ||"^D" g | (dg)(bg) (ag)(bg) | 
 (dg)(bg) (ag)(eg) | (ba).g.f (gf).e.d | efga bgg |]  