Create musical pieces following the given structure and incorporating the suggested musical concept.
X:1
L:1/8
M:2/4
K:D
['eB eB'  
X:1
L:1/8
M:2/4
K:D
|: D2 FA |"D" dc BA | BE EF |"G" G A/G/ FE |"A" D2 FA | dc BA |"G" Be"A" Bc |"D" d2- d2 :: 
"Em" eB eB | eB B>c |"D" dA dA | dA A>B |"Em" eB eB | eB B>c |"G" dB"D" AF |"Em" E2- E2 :|  