Develop a musical composition incorporating the given motif while adhering to the outlined alphabetical form.
X:1
L:1/8
Q:1/8=150
M:2/2
K:A
['AGAB cABc dcdf ed (3efg aecA', 'A2 A2']  
X:1
L:1/8
Q:1/8=150
M:2/2
K:A
 E2 | AGAB cABc | dcdf ed (3efg | aecA dfed | cABG EFGE | AGAB cABc | dcdf ed (3efg | aecA dBGB | 
 A2 A2 A2 :| A2 | Aceg aece | gefd efge | aecA dfed | cABG EFGE | Aceg aecA | gfdf e2 (3efg | 
 aecA dBGB | A2 A2 A2 :|  