Construct a musical work based on the outlined musical system in language.
'Binary', 'Sectional: Verse/Chorus'  
X:1
L:1/8
M:4/4
K:C
|: ef g2 ef g2- | gcde fedc | e4 f4 | dc d2- d4 | ef g2 ef g2- | gcde fedc | e4 f4 | dc d2- d4 :: 
[K:Gmin] cgfe c2 cB | c2 cB cdef | ggfe c2 cg | fecB c4 | cgfe c2 cB | c2 cB cdef | ggfe c2 cg | 
 fecB c4 :|  