Utilize the provided motif and the alphabetically represented musical sequence to craft an original musical composition.
X:1
L:1/4
Q:1/4=120
M:2/2
K:Eb
['E G E', 'B c']  
X:1
L:1/4
Q:1/4=120
M:2/2
K:Eb
"^Briskly." E | G E G E | F3 F | A F A F | G3 || B | c B c d | e (d/c/) B A | G2 F2 | E3 |]  