Create compositions following the given structural principles.
Only One Section  
X:1
L:1/8
M:6/8
K:Bb
 F2 F B2 B | D3 F2 F | E3 F2 D | B,3- B,2 F | B2 A GAB | c2 A F>GA | B2 G C>D=E | F3- F2 F | 
 d3 B2 B | e2 d c2 A | B2 c B2 _A | F3 D2 D | E2 E D2 C | D2 E F2 B | c2 A F>GA | B6 |]  