Create compositions following the given structural principles.
Only One Section  
X:1
L:1/8
M:2/4
K:G
 | B2 B/B/c | d2 z B | c>Bcd | B2 z D | B>BBc | dddB | cBcd | B2 z D | B>BBc | dddB | cBcd | 
 B2 z2 |]  