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Crystal-P (クリスタルP), also known as HzEdge, is a producer who mainly uses Len and KAITO. Crystal-P's first work, "crystal mic", gained quite an attention and that was what made his P name. Crystal-P's most notable work is "erase or zero", that once ranked first in the Vocaloid weekly ranking. He is commonly credited as arranger on songs written by ZankyouP and KID-P.
STATUS:January 2008 → Present
OFFICIAL:Website: K-Kei
URL(s)Piapro Twitter Nico Nico
PLAYLIST(s):YouTube Playlist / Nico Nico Douga List
WORKS: (Upload date)
  1. "crystal mic (revision)" (Len) (Jan.04.2008)
  2. "dandelion" (Len) (Mar.13.2008)
  3. "erase or zero" (Len, KAITO) (May.14.2008)
  4. "In-you" (Len) (Dec.02.2008)
  5. "rb" (Len and KAITO) (Dec.27.2008)
  6. "Kojou" (Len) (Jul.20.2009)
  7. "Nova Travel" (Len) (Dec.15.2009)
  8. "beginning of Last" (Len, KAITO) (Dec.26.2009)
  9. "Harunoki -harunoki-" (Len) (Mar.24.2010)
  10. "Kira Kira Nako Domo" (Len) (May.02.2010)
  11. "Kira Kira Nako Domo/escaper (Crossfade)(May.08.2010)
  12. "erase or zero(Vocalogenesis only NewMix) (Len, KAITO) (May.16.2010)
  13. "campanula blue" (Len) (Aug.03.2010)
  14. "erase or zero -DivaAC Edited-" (Len) (Oct.15.2010)
  15. "Yakiimo no Uta" (Len, KAITO, Miku, Rin, Miku, and MEIKO) (Oct.25.2010)
  16. "haiyuki" (Len, KAITO) (Dec.27.2010)
  17. "Kirai, Kirai,... Daikirai." (KAITO) (Feb.14.2011)
  18. "farewell speaker" (Len) (Mar.28.2011)
  19. "Sono Hi, Made" (Len) (Apr.25.2011)
  20. "Mango Pudding" (Len, Rin) (Nov.01.2011)
  21. "crystaL-xxx- (Crossfade)" (Dec.27.2011)
  22. "crystalmix-Eng.shortmix-" (OLIVER) (Jan.01.2012)
  23. "Reach for the Bluesky" (KAITO) (Feb.14.2012)
  24. "Strawberry♡Princess" (Rin) (Aug.05.2012)
  25. "everyday、オチューシャ" (Len, OLIVER) (Dec.21.2012)
  26. "Kienaide." (KAITO, KAITO V3) (Feb.17.2013)
  27. "Kanata" (KAITO) (Feb.28.2013)

Songs / Featured Works[]

erase or zero

Uploaded 2008.05.14 Featuring Kagamine Len, KAITO
Music Crystal-P Main article erase or zero
Lyrics Crystal-P
This song has entered the Hall of Fame. It was featured in the game Hatsune Miku -Project DIVA- F 2nd and in the concerts Magical Mirai 2013 and Magical Mirai 2014.

マジカル☆ぬこレンレン (Magical☆Nuko Len Len)

Uploaded 2009.12.13 Featuring Kagamine Len, Hatsune Miku, Kagamine Rin, and KAITO
Music Owata-P (music), Crystal-P (mastering) Main article マジカル☆ぬこレンレン (Magical☆Nuko Len Len)
Lyrics Owata-P
Video (Anonymous) (illust), Owata-P (video)
This song has entered the Hall of Fame.

やきいものうた (Yakiimo no Uta)

Uploaded 2010.10.25 Featuring Kagamine Len, KAITO, Hatsune Miku, Kagamine Rin, and MEIKO
Music KID-P (music), Crystal-P (arrangement) Main article やきいものうた (Yakiimo no Uta)
Lyrics Zankyou-P
Video Tamara (illust)

灰雪 (haiyuki)

Uploaded 2010.12.27 Featuring Kagamine Len, KAITO
Music KID-P (music), Crystal-P (arrangement) Main article 灰雪 (haiyuki)
Lyrics Zankyou-P
Video Sakuraba Chidori (illust)

Reach for the Bluesky

Uploaded 2012.02.14 Featuring KAITO
Music Crystal-P Main article Reach for the Bluesky
Lyrics Crystal-P
Video Ichimura (illust)
This song was released in celebration of KAITO's 6th birthday.


Uploaded 2016.03.14 Featuring Kagamine Len
Music KID-P (music), Crystal-P (arrangement) Main article ∞/KID-P
Lyrics Zankyou-P
Video SOOOO, Aoiro Ichigo (illust)

minus in the sun

Uploaded 2017.06.16 Featuring Kagamine Len
Music SOOOO (music), Crystal-P (mastering) Main article minus in the sun
Lyrics SOOOO
Video SOOOO, Aoben Mahito (illust)