^ haha it was in the original post
And I posted download links in the download section.
Every wednesday new chakuutas come out, and you can see which songs will come out on what days in advance via the mobile sites. As for official news from TA and Ayu's official site, I don't know when they post it... But I think it's usually the day it comes out.
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"Remember, don't let others dictate your music taste. If you like whatever you're listening to, keep listening to it."