Develop a musical piece employing the provided motif and an alphabet-based structure.
X:1
L:1/16
Q:1/4=50
M:2/4
K:C
['g4 g4', "fgdg eceg c'gec"]  
X:1
L:1/16
Q:1/4=50
M:2/4
K:C
 C2 |[K:C]"^November The 9th 1840" cdef | g4 g4 | g4 fedc | z2 a2c'2a2 | a2g2 z ceg | a2c'2c'2a2 | 
 a2g2 z2 f2 | e2d2c2B2 | c6 :: e2 | dfeg fgdg | eceg c'gec | dgeg fgdg | eceg c'gec | g4 g4 | 
 g2c'g fedc | d2fd c2B2 | c6 :|  