Construct a musical work based on the outlined musical system in language.
Only One Section  
X:1
L:1/8
Q:1/4=90
M:2/4
K:C
 b2 a/g/f/e/ | d4 | b2 a/g/f/e/ | d4 | dd/d/ ec | B4 | dd/d/ ec | B4 | dd/d/ ec | A4 | z d ef | 
 gf ed | b2 a/g/f/e/ | d4 | b2 a/g/f/e/ | d4 | dd/d/ ec | B4 | dd/d/ ec | B4 | dd/d/ ec | A4 | 
 z d df | gd g2 ||  