TAN Mitsugu:
This issue has Yagi Yasuo's commentary on Studio Tan, with his parody illustration of Gary Panter's cover art. As an FZ enthusiast, he'd been in charge of providing Japanese liner notes for most of the Discreet-era albums. But for Studio Tan, Warner Pioneer in Japan decided to hire a not-so-enthusiastic American writer to do the job, which resulted in a not-so-satisfactory text for an avid fan like Yagi. Thus, he essentially wrote his own version of liner note in the first installment of his monthly column. (It was later incorporated into his "Zappa Vox" in 1989.)

You can find another FZ-related article called "An Introduction To Classic Albums", to which four Japanese musicians contributed their thoughts on OSFA. Two of them, namely Sakuma Masahide and Morizono Katsutoshi, were from a band called Yonin Bayashi, which was one of the supporting acts for FZ's first Tokyo concert (1976/2/1). Sakuma was also a member of the Plastics, whose song "Robot" was picked up by FZ during his BBC Radio 1 appearance in 1980.

TAN Mitsugu:
The article shows eleven guitars in FZ's house. The photos were taken by Joel Serber, but the author of the Japanese text is unknown.

Apparently, Serber and the unknown author didn't notice that they also took up two of Dweezil's guitars: a Stratocaster with a lot of stickers on it (p. 268, center) and "Star Guitar" (p. 269, left), which was a special present from Eddie Van Halen. (You can read the full story on the guitar here.)

Among FZ's guitars featured here, I think the black fretless Stratocaster (p. 268, right) is the rarest. Is it the one that FZ mentioned during the 1982-04-20 rehearsal? (See: https://www.youtube.com/watch?v=gtLKP04qJTg)

Frank Zappa interview was originally printed as "Frank's Wild Years", Q, December 1989. Translated by Kato Masato.

TAN Mitsugu:
Last September, I came to realize that it is the summer 1979 interview that was included in Rosen's CD "Frank Zappa – The Classic Interviews". 

You can see the more detailed discussions in affz. 

TAN Mitsugu:
This extra issue of the Player magazine essentially gathers their old articles on guitar collections of various famous musicians. The photos of FZ's guitars are from the January 1995 issue. In addition, you can read Steven Rosen's interview with Dweezil (translated by Fujimoto Yukiko) and see his guitar collections.

TAN Mitsugu:
This article is a translation of Andy Aledort's interview with Vai and Keneally, which originally appeared on Guitar World (1999 February). One of the other features of this issue is "100 Guitar Solos!!!", which has Vai's comment on Jimmy Page's solo in "Heartbreaker" (from Led Zeppein II). Also, Page 115 has a book review on Ohyama Kohjitsu's Dai Zappa Ron.

TAN Mitsugu:
These interviews are original, done by Kato Masato for the Player magazine. ZPZ did their Japanese tour in January 2008, and MK did his solo gig in Japan next month.

Note. One regular column in Player is titled "My Guitar Wants To Kill Your Mama" (p 75).

TAN Mitsugu:
This is part of a special feature entitled "Rock Movies of My Youth [我が青春のロック映画]". The "archive interview" is an abbridged version of "Frank's Wild Years", which had also appeared on the December 1990 issue of Player. And two photos of FZ's guitars are also recycled from one of their old issues (April 1983).