Develop a musical composition that aligns with the given structural outline and thematic content.
X:1
L:1/4
M:4/4
K:Emin
['B G2'  
X:1
L:1/4
M:4/4
K:Emin
 B, |"Eb" E2"Bb7" F A |"Eb" G G/F/ E F |"Eb" G2"Fm" A c |"Bb7" B B/A/"Eb" G B | 
"Fm" B A/G/"Bb7" A B |"Eb" G2 z |: B |"Eb" G2 B e |"Ab" c c/B/"Fm" A A |"Fm" F2 A c | 
"Eb" B B/A/ G B |"Fm" B A/G/"Bb7" A B |"Eb" G2 z :|  