#Japan #AI Music #Chofu #Spollup Inc. #prompt-jukebox

Introducing the Prompt-Jukebox: A Game Changer for AI Music in Japan

On May 7, 2026, Spollup Inc., based in Chofu City, Tokyo, officially launched the Prompt-Jukebox, an artist prompt dictionary specifically tailored for Japanese users of the AI music generation service SUNO. This innovative service currently features prompts for 300 artists, and the company's ambitious goal is to expand this number to 10,000 artists by the end of the year.

Service Overview

The Prompt-Jukebox serves as a user-friendly web dictionary that generates and allows instant copying of prompts necessary for producing the desired sound through SUNO. The service is described as "a vocabulary of prompts for Japanese people, by Japanese people, and for Japanese people," echoing the essence of the Gettysburg Address. It features a Japanese user interface and carefully selects artists that resonate with Japanese music fans, ranging from J-Pop to classic rock and pop standards from abroad. The platform's ability to facilitate one-click copying of prompts adds to its accessibility and user-centered design.

The Significance of 300 Artists

While there are existing large-scale prompt dictionary services for English-speaking audiences, Japanese users have lacked sufficient resources tailored to their unique perspectives and needs. Prompt-Jukebox aims to fill this gap by providing a high-quality, Japanese-specific platform featuring prompts from 300 familiar artists. This specialization positions it as the premier choice for Japanese music enthusiasts seeking to create with SUNO.

Key Features of Prompt-Jukebox

The Prompt-Jukebox offers several core functionalities that enhance the creative process for users:

• - Artist Name to SUNO Prompt Generation: Users can easily search for artists, receive suggestions, navigate similar artists, and copy prompts with one click.
• - Style Breakdown Display: The platform provides organized information on genre, instruments, mood, production style, and BPM.
• - Lyric Generator: Utilizing the Claude Haiku 4.5 API, the Prompt-Jukebox can generate lyrics in Japanese, English, or a mix of both.

Pricing Structure

Most functionalities, including artist prompts, are completely free for all users. Users can generate lyrics up to three times per month for free, with a Premium plan available for 500 yen per month, offering unlimited access. Premium subscribers will also receive prompt modification suggestions and contributor badges over time.

Roadmap to 10,000 Artists

The company has laid out an aggressive growth roadmap:

• - May 2026: Official launch with 500 artists.
• - June 2026: First milestone achievement of 1,000 artists.
• - August 2026: Expanding to 3,500 artists, becoming one of Japan's largest platforms.
• - December 2026: Reaching a total of 10,000 artists.

Development Team

The development and operation of the Prompt-Jukebox are powered by the Syne Team at Spollup Inc., which includes internal engineers, marketers, designers, composers for SUNO, and experts in SEO and SNS management. This diverse network of professionals brings a wealth of expertise that contributes to the platform's robust functionality and user experience.

About Spollup Inc.

Founded in 2017 and located in Chofu City, Spollup Inc. specializes in e-commerce operations, affiliate marketing, event planning, and AI product development. Further information can be found on their website.

Contact Information

For inquiries regarding this launch, please contact the representative, Kato, via email at [email protected]. For the latest updates, visit the Prompt-Jukebox website directly.