Construct a musical piece that contains the provided motif and abides by the prescribed alphabetical scheme.
X:1
L:1/4
M:3/4
K:D
['g a f', 'c2 G/A/B/c/ d c/d/e/f/ g G/A/B/c/ d/B/']  
X:1
L:1/4
M:3/4
K:D
 g | a f f | e2 g | a f f | e2 g | a f d | g e c | f d B | c2 :: G/A/B/c/ d | c/d/e/f/ g | 
 G/A/B/c/ d/B/ | c2 :|  