Utilize the provided motif and the alphabetically represented musical sequence to craft an original musical composition.
X:1
L:1/8
M:4/4
K:D
['(3ccc BB', 'gB (3BBB']  
X:1
L:1/8
M:4/4
K:D
 (3ccc BB ABcd | egfd edBd | gB (3BBB gBaB | gB (3BBB gfed | (3ccc BB ABcd | egfd edBd | 
 gfgd eged |1 (3ccc Bc A2 ed :|2 (3ccc BB ABce || aA (3AAA aAbA | aA (3AAA agef | gB (3BBB gBaB | 
 gB (3BBB gfeg | aA (3AAA gA (3AAA | fA (3AAA edef | gfgd eged |1 (3ccc BB ABce :|2 (3ccc Bc A2 ||  