Construct a musical piece that contains the provided motif and abides by the prescribed alphabetical scheme.
X:1
L:1/16
M:3/4
K:G
['g6 a2']  
X:1
L:1/16
M:3/4
K:G
 G/A/B/d/ eg | g6 a2 g2e2 | d2B2 A4 d2cA |{GB} A8 G4 | G8 BAG{B}A | G2B2 d4 e2g2 | 
 g6 a2 g/a/b/a/ ge | d6 e2 B2G2 | A8 BAGA | G2B2 d4 e2g2 | g6 a2 g/a/b/a/ ge | d6 ed B2G2 | 
 A8 g2>a2 | g6 a2 bage | edB2 A4 (3d2c2A2 |{GB} A8 G4 | G8 ||  