Construct a musical piece utilizing the given sequence in alphabetical form and the supplied motif.
X:1
L:1/8
M:4/4
K:G
['G>FG>A B>de>f |{a}', 'a>gf>a g>fg>ed>cB>c d>BG>B e>cA>c |{a} g>fg>a g>dB>d']  
X:1
L:1/8
M:4/4
K:G
 d>c | B>Gc>G B>GA>F |{A} G>FG>A B>de>f |{a} g>fg>ed>BA>c | B>GA>F G>DE>F | G2 B>G A>GE>F | 
{A} G>FG>A B>de>f |{a} g>fg>e d>BG>B | A>DE>F G2 :: B>c | d>BG>B e>cA>c |{a} g>fg>ag>dB>d | 
 b>ag>b a>gf>a | g>fg>ed>cB>c | d>BG>B e>cA>c |{a} g>fg>a g>dB>d | b>ag>b a>gf>a | f>de>f g2 :|  