When the starting tune of battle symphony gets played at the end of the song during the chorus, I kinda feel nostalgic idk why.
Also, over the years, I have observed chester’s vocal style change during the live performances. Especially after 2010, he sings the songs of their first two(mainly) albums in a different, more lighter, melodious way. In my opinion, chester’s vocals has developed to a new style and has become a better singer in this way, which is clearly heard in battle symphony and a little in heavy.
A video update: