Construct a musical piece utilizing the given sequence in alphabetical form and the supplied motif.
X:1
L:1/8
M:4/4
K:C
['DFED dfed', 'def(g ag)f(a', 'fagf eAce g2']  
X:1
L:1/8
M:4/4
K:C
[M:2/2][K:D] .abc DFED dfed | cAGF EFGE | DFED dfed | cAGE AFGE | DFED dfed | cAGF Ec c2 | 
 DFED dfed | cAGE FD D2 || def(g af)dB | cde(f ge)cA | def(g ag)f(a | ge)cd eddf | afd(f af)df | 
 gec(e gf)ge | def(g ag)f(a | g)ecd ed d2 || fefg fagf | eAce g2 ag | fede fage | fdec Gdde | 
 fede fagf | eAce g2 fg | afge dfed | cAGE FD D2 |]  