Design musical compositions that conform to the indicated framework and encompass the proposed musical concept.
X:1
L:1/8
M:2/4
K:D
['A>B cA BA'  
X:1
L:1/8
M:2/4
K:D
"A" A>B cA |"D" BA cA |"A" A>B cA |"D" BA F2 |"A" A>B cA |"D" BA ce | A>B AF |"E" FE E2 :| 
"A" e>f ec |"D" BA Bc |"A" e>f ec |"D" BA F2 |"A" e>f ec |"D" BA Bc | A>B AF |"E" FE E2 :|  