Develop a musical composition incorporating the given motif while adhering to the outlined alphabetical form.
X:1
L:1/8
M:2/4
K:A
['GEAB c2 Bc']  
X:1
L:1/8
M:2/4
K:A
 A | GEAB | c2 Bc | dcBA | G>FEA | GEAB | c2 Bc | d>cBc/B/ | A2 z c | cccc | B>BB^d | e^def | 
 B>^deA | GEAB | c>cBc | dcBc/B/ | A3 |]  