Nippon Koji

Composer & Arranger

Nippon Koji on SoundBetter

Arranger/composer with major-label credits in Japan and international sync placements — bring your song to life with pro-level J-Pop, and idol-style arrangements.

I'm an arranger and composer based in Kanagawa, Japan (Tokyo area), with 15+ years of experience writing and arranging for major Japanese record labels, including credits with Universal Music Japan (Last Idol). My music has also been placed through international publishing/sync libraries, with tracks used in game-related media (including content tied to Marvel's Spider-Man 2) and licensed internationally through BMI/JASRAC.

I specialize in J-Pop and idol-style arrangements — full production, vocal arrangement, and track-making. Whether you have a rough demo or just a topline melody, I can turn it into a polished, release-ready arrangement.

Fast turnaround, clear communication, and a strong ear for what makes a song work commercially. Let's talk about your project.

Would love to hear from you. Click the contact button above to get in touch.

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Demo Reel – "Never End" & "Outsider" by Beep Bleep

I was the Composer, Arranger, Producer in this production

Terms Of Service

2 rounds of revisions included. Turnaround: 7-10 business days depending on complexity. Rush delivery (4-5 days) available for +30% fee. Major changes beyond initial scope billed separately.

Gear Highlights
  • Fender Studio Pro
More Photos
More SamplesArranger & composer for Last Idol, JKT48, Phylosophy and other J-Pop acts.