Construct a musical piece that contains the provided motif and abides by the prescribed alphabetical scheme.
X:1
L:1/8
M:6/8
K:Gdor
['B3 AGF DFG FGA B2 B', 'A B3 cBc dgg fdc dgg gfg']  
X:1
L:1/8
M:6/8
K:Gdor
 B3 AGF | DFG FGA | B2 B cBc | dfg fdc | B3 AGF | DFG FGA | B2 B cAF | AGF G2 A :| B3 cBc | 
 dgg fdc | dgg gfg | agf g2 f | dgg bgg | a3 fdc | B3 cAF | AGF G2 A :|  