ANYONE HAVE A NICOVIDEO PREMIUM? I’m in need of assistance.

Hey, anyone who has a nicovideo premium, I’d like some assistance. Now, I didn’t know that you could timeshift (for free) before a nicovideo livestream but afterwords, you have to buy a premium account.
I was watching this stream the other day,
電波研究社～アニメ・ゲーム・アニソン～ (http://live.nicovideo.jp/watch/lv43053466)
In the stream, composer Masato Kouda (Devil May Cry 1-2, Monster Hunter, El Shaddai: Ascension of the Metatron) performed a brief but beautiful arrangement of "Theme of El Shaddai" from the upcoming game. As a pianist, I’d love to learn the exact piece that he performed but no one has uploaded any videos of the performance so I’d like to get a hold of the video. (Audio would be enough but video would rock even more.)
But I can’t access a timeshift of the stream. I was wondering if anyone who has a premium could spare a minute to try to record the piano part (or at least the audio.) The stream expires on the 28th so PLEASE somebody help! Thank you so much!!!