Is Hertzora free to use?

Yes! Hertzora is free to use. The free plan gives you access to the Grand Piano, Studio Harmonium, and all backing tracks — no credit card required. A Pro upgrade is available to unlock all 7 instruments.

Do I need to download anything to use Hertzora?

No downloads needed. Hertzora runs entirely in your web browser — just open hertzora.in and start playing instantly on any device.

Can I play Indian instruments like Santoor and Harmonium online?

Absolutely! Hertzora features a Studio Harmonium (free) and a Santoor (Pro), making it one of the very few online studios with authentic Indian instrument simulations playable directly in your browser.

Does Hertzora work on mobile?

Yes, Hertzora is fully responsive and works on mobile browsers. You can tap the on-screen keys on your smartphone or tablet to play any instrument.

What Bollywood songs are available as backing tracks?

Hertzora currently offers two popular Bollywood backing tracks: 'Tum Hi Ho' and 'Kesariya', along with other genres including EDM (Sky High), Dubstep (Mortals), Alt-Pop (Cradles), Hip-Hop (Royalty), and Pop Rock (Believer).

What is the Pro version of Hertzora?

The Pro version of Hertzora unlocks the full instrument library including the Santoor, Acoustic Guitar, Harmonica, Electronic Drums, and Acoustic Drums. It is available as a one-time or subscription upgrade via Google login.

How can international users buy the Pro version?

International users can easily purchase the Hertzora Pro subscription by downloading the Hertzora Android App from the Google Play Store. The app uses Google Play Subscriptions, which seamlessly processes international credit cards and payments in local currencies.

Open-Source AI Music Agent | Hertzora AI Composer Skill

Artificial Intelligence is transforming how we interact with software, and music creation is no exception. We are thrilled to introduce the Hertzora AI Agent Skill, a powerful, open-source AI music generator designed to turn your song ideas, moods, or favorite real-world songs into instantly playable Hertzora instrument links.

What is the Hertzora AI Agent Skill?

Available for developers and musicians alike on GitHub, the Hertzora AI Composer is a conversational AI agent skill that integrates directly into your agentic AI workflows. It empowers AI agents to understand musical theory, rhythm, and emotion, allowing them to compose and transcribe music for instruments like the Harmonium, Grand Piano, Virtual Santoor, Acoustic Guitar, Harmonica, and Drum Sets.

Key Features of the AI Music Assistant

Unlike basic AI music generators that output generic patterns, our AI Agent Skill enforces strict Composition Quality Rules to ensure every piece is rich and expressive:

Intelligent Composition: Generates 4-8 phrase melodies with dynamic range, octave jumps, and expressive meend (glides).
Song-Based Mode: Want to play a popular song? The agent can intelligently search notationsworld.com, fetch the Sargam notation, and convert it into Hertzora's precise key format.
Instant Playable Links: Automatically encodes the generated notation into a Base64 URL that opens the Hertzora studio and auto-plays the music.

How to Use the AI Agent Skill

The skill is designed for seamless integration in AI environments (like OpenCode). Once installed in your ~/.opencode/skills/ directory, you can simply prompt your AI:

  "Create a Hertzora piano link for a romantic melody"

  "I want to play Kesariya on harmonium"

Open Source and Developer Friendly

We believe in the power of open-source AI. The Hertzora AI Agent Skill includes bundled Python and Bash scripts for robust URL encoding, ensuring that the AI doesn't struggle with Base64 generation. Developers can dive into the comprehensive SKILL.md and key mapping references to customize the agent's behavior and extend its capabilities.

🚀 View the Hertzora AI Agent Skill on GitHub

Embrace the future of generative AI and agentic workflows. Elevate your musical journey by integrating the Hertzora AI Agent Skill today, and let AI become your personal music composer!