Create a musical piece that integrates the provided motif and follows the prescribed alphabetical structure.
X:1
L:1/16
M:3/8
K:Bb
['g2fdc2 f2gbc2']  
X:1
L:1/16
M:3/8
K:Bb
 g2fdc2 | f2gbc2 | cdg2f2 | gbc2f z | cdg2f2 | gbg2 z2 | g2fdc2 | f2gbc2 | c2bgf2 | g2b2gb | 
 c2c2f2 | f2bgf2 | gb g4 | f6 | g2cbg2 | b2 g4 | f6 |]  