Construct a musical piece that contains the provided motif and abides by the prescribed alphabetical scheme.
X:1
L:1/8
Q:3/8=60
M:6/8
K:G
['D GAG BcB A<FF F2 A G>AG', 'G2 d gag gab aff f2 g']  
X:1
L:1/8
Q:3/8=60
M:6/8
K:G
 D | GAG BcB | A<FF F2 A | G>AG g>ag | f<dd d2 f | fef fed | cdB A>Bc | e>dd d2 c | B<GG G2 || d | 
 gag gab | aff f2 g | gBd gab | afd d2 e | fBf fed | cdB A>Bc | ded d2 c | B<GG G2 |]  