Japanese User-Oriented SUNO Prompt Dictionary "prompt-jukebox" Officially Launched with 300 Artists Included

Spollup Inc. (Headquarters: Chofu, Tokyo / Representative Director: Shinjiro Yamamoto) officially launched "prompt-jukebox," an artist prompt dictionary developed for Japanese users of the AI music generation service SUNO, on May 7, 2026, with the achievement of including 300 artists. Its strengths include a Japanese UI and deep support for artist groups familiar to Japanese music fans, with the goal of including 10,000 artists within the year.

■ Service Overview
"prompt-jukebox" is a dictionary-type web service that allows users to instantly generate and copy prompts necessary to produce "desired sounds" in SUNO, based on artist song styles. We position this service as "a SUNO prompt dictionary by Japanese, for Japanese, for Japanese" (inspired by the Gettysburg Address), realizing a Japanese UI, selection tailored to the sensibilities of Japanese listeners (carefully selected artist groups familiar to Japanese music fans, from J-POP and Kayokyoku to classic overseas rock and pop), and one-click pasting.

https://prompt-jukebox.com/ TOP page

■ Significance of 300 Artists Included
While large-scale prompt dictionary services already exist for English-speaking regions, Japanese UI, selection from a Japanese listener's perspective, and explanations have not been sufficiently developed. prompt-jukebox aims to be the first choice in the Japanese market as a Japanese-specific service that high-quality includes 300 artists familiar to Japanese music fans.

https://prompt-jukebox.com/ Initial 300 artists included
https://prompt-jukebox.com/ Lyric Generator

■ Main Features
Features
Overview
Artist Name → SUNO Prompt Generation
Search, Suggest, Similar Artist Navigation, One-Click Copy
Style Breakdown Display
Structured display of Genre, Instrument, Mood, Production Style, BPM
Lyric Generator
Japanese/English/Mixed mode lyric generation supported by Claude Haiku 4.5 API

■ Pricing Structure
Artist prompts are completely free across all tiers (free to view and copy)
Lyric generation: Free up to 3 times a month, unlimited with Premium plan (500 JPY/month)
Premium subscribers will sequentially receive prompt modification suggestions and contributor badges.

■ 10,000 Artists Roadmap
Month
Cumulative Number of Artists
Milestone
May 2026
500 artists
Official Launch
June 2026
1,000 artists
Exceed 1,000 artists
August 2026
3,500 artists
Largest scale in Japan
December 2026
10,000 artists
Exceed 10,000 artists

■ Development System
"prompt-jukebox" is developed and operated by Spollup Inc.'s "Shin Team" (a network of experts consisting of in-house engineers, marketers, designers, SUNO composers, SEO/SNS specialists, and various outsourced partners), bringing together their collective knowledge.

■ Service URL
https://prompt-jukebox.com

■ Company Overview
Company Name: Spollup Inc.
Location: Chofu, Tokyo
Representative: Shinjiro Yamamoto
Established: 2017
Business Activities: E-commerce operation, affiliate marketing, event planning, AI product development and operation
URL: https://spollup.jp

■ Contact for this matter
Spollup Inc. Contact: Kato
Email: admin@spollup.jp
URL: https://spollup.jp/contact/