Craft a musical piece in accordance with the designated structure and theme.
X:1
L:1/8
Q:1/4=90
M:2/4
K:D
['|{f} e2']  
X:1
L:1/8
Q:1/4=90
M:2/4
K:D
 d>ef>e |"^a" d<GB<A | B<eg>f |{f} e2 z2 | d>"^e"d{de}f>e | d>Ac<B | dba>f |{e} d2 z2 | e>ca>g | 
 e>dc<B | B>Be>d |{d} c2 z2 | e>ca>f | e>dd>c | B2{g} fe{G |B} A2 z2({ABcdef)(gfagec)} | d>ef>e | 
 d<AB<A | B>e{a}g>f |{f} e2 z A | B>cd>B | A<FA<d | e<ba>c |{e} d2 z2 ||  