If you do, it would actually be really helpful.
~Story~
So, many people (including me) are trying to find the old Masa song 'Interface', and I've heard that Internet Archive's Wayback Machine can help so people can download the songs that were deleted, but they need to have an account from before the song was deleted on the website it was posted on. In this case, 3/9/2011. If anyone has a Niconico account from early 2011, you could be a great help to the people who want the song. If you could download it and post the audio on here, that would be wonderful.
Here is the link to download the song: https://web.archive.org/web/20180220175746/http://www.nicovideo.jp/watch/sm13822734
MASA FANS UNITE!!
Edit: and if the account if from 2/11/2011 or earlier that would be better because then the old song Wakare wa Iwazu ni Icchimae! can be downloaded as well
I'm asking this because my account is from this year