Terms of Service — Letron

1. Acceptance of Terms

By registering, accessing, or using Letron DAW and its associated services ("the Service"), you ("User") agree to be bound by these Terms of Service ("Terms") and our Privacy Policy. If you do not agree to these Terms, you may not use the Service.

These Terms constitute a binding agreement between you and Letron Music Inc. (樂易創股份有限公司) ("Letron", "we", "us", "our").

2. Description of Service

Letron is an AI-assisted digital audio workstation ("DAW") that combines music creation tools, AI generation features (including cloud-based music generation, the Replace module, AI-Mentor, and the Skill system), and a creation Provenance System. The Service may include subscription tiers, royalty arrangements, sync licensing opportunities, and a marketplace for audio assets.

3. Account Registration

Users under the age of 18 may use the Service only with the prior consent and supervision of a parent or legal guardian. By registering an account, you represent that you are either 18 years of age or older, or that you have obtained such consent.
You are responsible for maintaining the confidentiality of your login credentials and for all activity conducted under your account.
You agree to provide accurate, complete, and current information during registration.
Letron reserves the right to suspend or terminate accounts that violate these Terms.

4. Subscriptions and Payments

Access to the Service requires a paid subscription, billed on a monthly or annual basis.
All payments are processed by Paddle (paddle.com), Letron's authorized Merchant of Record. Paddle is responsible for billing, invoicing, and applicable tax collection.
Subscription fees are charged in advance. Prices are displayed inclusive of applicable taxes where required by law.
Letron reserves the right to modify pricing with 30 days' prior notice. Continued use after the effective date constitutes acceptance of the new pricing.
For refunds, see our separate Refund Policy.

5. Intellectual Property and Royalties

5.1 User Ownership

You retain all copyright and intellectual property rights in the musical works you create using the Service, including lyrics, melodies, and arrangements you directly author.

5.2 AI Contribution and Royalty Right

Letron's AI systems participate substantively in the creative process at every stage of music creation on the Service — including cloud-based music generation, the Replace module, AI-Mentor, and the Skill system. In recognition of this ongoing contribution, all musical works created using the Service are subject to a permanent royalty of 10% of all royalty income (including but not limited to streaming, downloads, and physical sales).

This royalty obligation:

Applies to all works created using the Service, regardless of the platform or distributor through which the work is released.
Is permanent and irrevocable — it continues regardless of whether you maintain an active subscription.
Is calculated based on net royalties received by you or your authorized representative.
The Ledger (Provenance System) serves as a reference record of AI interactions during the creative process.

You are responsible for accurately reporting qualifying works and remitting royalties to Letron. Letron reserves the right to audit royalty reporting with reasonable prior notice.

5.3 Non-Exclusive Licensing Rights

You may independently negotiate sync licensing agreements (e.g., film, TV, advertising) for works created using the Service.
Letron simultaneously retains the non-exclusive right to negotiate sync licensing opportunities on your behalf.
When Letron successfully negotiates a sync deal, Letron will collect a standard agency fee from the licensing revenue. This fee is separate from and does not affect your royalty income from other channels.
Neither party's licensing activities restrict the other's.

5.4 Letron's Self-Use License

You grant Letron a non-exclusive, royalty-free, worldwide, perpetual license to use your works solely for:

Playback and display within the platform
Promotional and marketing materials for Letron
Advertising content featuring the Service

Letron may not independently grant commercial licenses of your works to any third party for Letron's own account or benefit. For the avoidance of doubt, this does not restrict Letron's right to negotiate sync licensing opportunities on your behalf as your non-exclusive agent under Section 5.3, where the license flows directly from you to the third party and any resulting proceeds belong to you.

5.5 Existing Agreements

If you are subject to a recording contract, management agreement, or publishing deal, you represent and warrant that you have the right to enter into these Terms. Letron is not responsible for any conflicts with your pre-existing agreements; legal liability for such conflicts rests solely with you.

6. AI-Generated Content and Responsibility

Letron does not guarantee that AI-generated content is original or free from similarity to existing works.
You are solely responsible for the legality of any content you create, publish, or distribute using the Service.
Letron accepts no liability for third-party intellectual property claims arising from your use of AI-generated content.

7. Provenance System

The Provenance System records your creative process, including edit history, AI intervention ratios, and source materials used. These records are provided for transparency and reference purposes only. Provenance records do not constitute legal proof of authorship or a definitive determination of copyright ownership.

8. Skill System and Data Use

The Skill system stores your creative preferences and contextual settings to improve AI generation results. You agree that Letron may use anonymized data from your Skill usage and creative behavior to improve the Service's AI models and features.

9. Acceptable Use

You agree not to:

Upload, generate, or distribute content that infringes third-party intellectual property rights
Use the Service for any unlawful purpose
Reverse engineer, decompile, or attempt to extract Letron's AI models or source code
Use AI-generated content to deceive, defraud, or mislead others
Resell or sublicense access to the Service without authorization

10. Termination

Letron may suspend or terminate your account and delete associated content if you breach these Terms, with or without prior notice depending on the severity of the breach. You may terminate your account at any time by contacting support. Termination does not relieve you of any royalty obligations that accrued prior to termination.

11. Disclaimer of Warranties

The Service is provided "as is" and "as available" without warranties of any kind, express or implied. Letron does not warrant that the Service will be error-free, uninterrupted, or suitable for any particular purpose.

12. Limitation of Liability

To the fullest extent permitted by applicable law, Letron shall not be liable for any indirect, incidental, special, consequential, or punitive damages, including loss of revenue, loss of data, or loss of business opportunity, arising from your use of the Service.

13. Governing Law and Jurisdiction

These Terms are governed by the laws of the Republic of China (Taiwan). Any disputes arising from these Terms shall be subject to the exclusive jurisdiction of the Taipei District Court as the court of first instance.

14. Changes to Terms

Letron reserves the right to update these Terms at any time. We will notify you of material changes via email or in-app notice at least 14 days before the change takes effect. Continued use of the Service after the effective date constitutes acceptance.

15. Contact

For questions regarding these Terms: info@letronmusic.com