Compose a piece of music using the specified alphabetical notation system and the provided theme.
X:1
L:1/8
M:4/4
K:C
['[M:4/4][K:D] de eve ce ce f e', 'Be^de gef=d']  
X:1
L:1/8
M:4/4
K:C
[M:4/4][K:D] de eve ce ce f e G a a e[Q:1/8=180]"^simplified version" AD D2 ADBD | ADCD A,DFA | 
 G2 EG B,EGE |1 B,EGB AGFG :|2 B,EGB AGFE || Dddc dBAF | Dddc dB^Ac | Be^de gef=d | Be^de gef=d | 
 B^ABc dB=AF | Dddc dBc^d | e2 Be e2 Be | gefe dfec | d8 |]  