Construct a musical piece that contains the provided motif and abides by the prescribed alphabetical scheme.
X:1
L:1/8
M:3/4
K:G
['GA Bc', 'e2 .c2 c2 d2 B2 BA GF']  
X:1
L:1/8
M:3/4
K:G
 B2 A2 G2 | B6- | BB AG AB | d6 | c2 AB cA | B2 GA Bc | AG FG AF |1 GF EF GA :|2 G3 A DA || 
 GF GA Bc | .d2 d2 e2 | .c2 c2 d2 | B2 BA GF | GF GA Bc | .d z DE FG | AG FG AF |1 G3 A DA :|2 
 G6 ||  