Compose a piece of music following the specified structure and theme.
X:1
L:1/8
M:4/4
K:C
['DFA def', 'B2 d efe edB AFF dFF def'  
X:1
L:1/8
M:4/4
K:C
[M:6/8][K:D] ad_f ave dcaed e f eaue[Q:1/8=320] .z | B>dB B>AF | A>FE E>FE | DFA def | afe dBA | 
 BeG BAF | AFE EFE | DFA def | edB B2 :| d | efe edB | AFF dFF | def afa | bc'b afa | bff afa | 
 baf edB | def afd | edB B2 :|  