Create a musical composition adhering to the provided thematic and alphabetical guidelines.
X:1
L:1/8
M:4/4
K:Amix
['', 'gage aAAe', 'AAAB ccce']  
X:1
L:1/8
M:4/4
K:Amix
 f |: gage aAAe | cccA dBGB | gage aAAe | dBgB AA e2 | gage aAAB | cccA dBGB | ABcd ecce | 
 dBgB AA e2 || z | AAAB ccce | dBGB dBGB | AAAB ccce | dBgB AA e2 ||  