Thank you for your information as always,
Cosmic Eagle. If I am not mistaken, both you and
Kochiya prefer Eternal Song over the main story of Shakugan no SHANA. Thus, it has to be very special for you two to feel that way. I am glad that your crystal clear explanation has definitely enlightened non-novel readers, like me.
Even though it does not involve Shana and Yuji, I do not mind an additional Shana movie narrating Eternal Song.
The more Shana anime, the better. I just could not believe that Season 3 will soon conclude. Sigh, all good things must come to an end.