Develop a musical composition that aligns with the given structural outline and thematic content.
X:1
L:1/8
M:4/4
K:Bdor
['f2 BBBc B2 A2 Bcde f4 e2', 'de f3 d B2 f2 BBBd f4'  
X:1
L:1/8
M:4/4
K:Bdor
 f2 | BBBc B2 A2 | Bcde f4 | e2 A2 efed | c2 A2 A2 f2 | BBBc B2 A2 | Bcde f4 | e2 a2 f2 ef | 
 d2 B2 B2 :: de | f3 d B2 f2 | BBBd f4 | e2 A2 efed | c2 A2 A2 de | f3 d B2 f2 | BBBd f4 | 
 e2 a2 f2 ef | d2 B2 B2 :|  