Create a musical composition adhering to the provided thematic and alphabetical guidelines.
X:1
L:1/8
M:7/8
K:A
['[ec]2 [ec] [dB][cA] [dB][ec]', '[Ac][Bd] [ce]2 [Bd][Ac] [Bd][ce] |1 [Ac]2 [Bd]']  
X:1
L:1/8
M:7/8
K:A
 z [af][ge][fd] |"E7" [ec]2 [ec] [dB][cA] [dB][ec] |"A" [cA]2 [dB] [ec][af][ge][fd] | 
"E7" [ec]2 [ec] [dB][cA] [dB][ec] |1"A" [cA]3 :|2"A" [cA]3 z2 |: [EA]2 | 
"A" [Ac]2 [GB] [Ac]2 [Bd]2 | [ce]2 [Bd] [Ac]4 |"D" [df][df][df] [df][ce] [Bd][Ac] |1 
"A" [ce]3 z2 :|2"A" [ce]3 z2 [ce][df] |:"E7" [eg][eg][eg]"D" [fa][eg] [df][ce] | 
"E7" [Bd]2 [df]"A" [ce][Bd] [Ac][Bd] | [ce]2 [ce]"E7" [Bd][Ac] [Bd][ce] |1 
"A" [Ac]2 [Bd] [ce]2 [df]2 :|2"A" [Ac]3 |]  