Craft a musical composition with the supplied motif and conforming to the necessary format.
X:1
L:1/8
M:3/4
K:C
['CB,CA,G,A, G,2 F,2 E,2']  
X:1
L:1/8
M:3/4
K:C
 CB,CA,G,A, | G,2 F,2 E,2 | CB,CA,G,A, | G,2 F,2 E,2 | CEEEEC | B,DDDDB, | CA, G,2 B,2 | C2 z4 |]  