Board Thread:Questions and Answers/@comment-70.119.200.104-20130919231110/@comment-5290733-20130920034503

I should mention that if the off-vocal isn't on piapro, or if you want to use a pitched or arranged off-vocal, enter the url of the nico video into the yellow search bar on this site. At the bottom of the page, under the graph, there will be a button saying MP3 を抽出. CLick it and you can download the audio for that video.

Oh, and if you can't find an NND video of an off vocal, the best way is to, uhm, google search [song name] off vocal.