Construct a musical piece that contains the provided motif and abides by the prescribed alphabetical scheme.
X:1
L:1/8
Q:1/4=120
M:4/4
K:C
['ce(ab) agfe', 'EDEG EDCD EFGE G2']  
X:1
L:1/8
Q:1/4=120
M:4/4
K:C
"^Fast" c2- | ce(ab) agfe | c(d[ee])[ee] [ee]2 cB | A(cd)c dc A2 | c2 BB A2 GA | ce(ab) agfe | 
 c(d[ee])[^de] [ee]2 c2 | d^cde f(g a2) |{f} g4 g2 c2- | ce(ab) agfe | c(d[ee])[^de] ([ee]2 c)B | 
 A(cd)c (dc)AA | [Ec]3 [Ec] [Ec]2 Gc | dcde dccc | e2 gg e d3 | [eg]4 [eg]2 [dg]2 | c3 c c2 :: 
 z G | EDEG EDEG | EDEF G2 G2 | cBc(c d)cAB | c2 B2 A2 G>G | EDEG EDCD | EFGE G2 cc | d2 dc dcAc | 
 d2 cc A2 G2 | EDEG EDCD | EFGE G2 GA | c2 cc dc A2 | [Ec]3 [Ec] [Ec]2 GA | dcde d2 cc | 
 e2 !slide!g2 e d3 | [eg]4 [eg]2 [dg]2 | [ce]3 [ce] [ce]2 :|  