QuarterTone is operated by JeffCo Industries, LLC ("Company", "we", "us", or "our"). By accessing or using our platform, interactive studio, or services, you agree to be bound by these Terms of Service ("Terms"). You must be at least 18 years of age to access or use the platform. Before signing in or connecting an AI provider, you must explicitly confirm that you are at least 18. We record your assertion, not your date of birth. Existing account holders must make the same confirmation before using AI providers again.
1. What the Service Is
The platform provides deterministic music intelligence, supervised commissions, review, revision, and artifact export. The service is an automated musical collaborator and arranger; it is never a notation editor. Certain capabilities are labelled betas (for example, hum-to-notation is a labelled beta). Reference material uploads (such as PDF and PNG files) are reference material read by automated vision, never transcription. Commission briefs may request transcription, arrangement, orchestration, quotation or stylistic transformation of existing music.
2. Your Content
You retain all ownership rights in the musical material, files, and prompts you provide ("Your Content"). You grant us a limited, worldwide licence to process, render, store, and deliver Your Content solely to operate the platform and perform requested jobs. You warrant that you hold all necessary rights in Your Content and that reference uploads comply with applicable laws. Scores or references fetched from public libraries remain subject to their respective library licences and are your responsibility.
3. Outputs and Intellectual Property
You own the outputs generated for you to the extent permitted by applicable law. Score files we deliver as PDF, MusicXML or MIDI carry an embedded watermark token, derived from the account the file was made for, so that we can verify where a copy came from; other files we deliver, such as data files and written guides, may not carry one.
4. Plan and Fair Use
The platform offers Starter at $20.00/month, Studio at $60.00/month, and Pro at $200.00/month. For now we take payment only from buyers in the United States, and no sales tax is added. Live-session and fair-use compute limits vary by plan and are shown in the billing catalog before purchase. Fair-use compute is monitored continuously, with an advisory notice and a hard usage cap at the selected plan's published limits; for Studio these are 80 and 150 hours of active compute per calendar month (UTC), counted from the first day of each month whatever your billing date. Subscriptions renew automatically in accordance with our Auto-Renewal Notice. You may cancel at any time, with access continuing through the end of your paid billing period; a refund revokes access immediately.
5. Production Budget and Compute Packs
Compute packs may be purchased for production workloads at $10.00, $25.00, $50.00, $100.00, $250.00; through PayPal, packs start at $25.00. Every purchase requires a settled subscription and passes fraud screening. Managed work is charged in credits in proportion to the AI model usage it consumes, at a rate we set. Before a commission starts you choose the most it may spend, and it asks you before spending more. Unused budget is refundable pro rata within 14 days of purchase; consumed inference is final and non-refundable, and failed turns are not charged. Credits expire 12 months from the purchase date, are non-transferable, and apply exclusively to platform services. Promotional credits are non-refundable.
6. Bringing Your Own AI Account
When you configure your own external AI provider credentials, that vendor is your processor operating under its respective customer terms ("own-account processor"), and that provider may display prompt logs to you. Disclosures and confidentiality elections apply by reference. Only one external provider account is permitted per user; the platform never parses or persists your raw login file. Gemini keys for EEA, UK and Swiss users must be paid-tier accounts. Provider policy changes may pause an active commission, and you may switch provider configurations with one click.
7. Confidentiality and Trade Secrets
These Trade Secret Protection and Confidentiality Clauses govern your access to and use of proprietary technology, musical expertise, and methodology provided by JeffCo Industries, LLC.
7.1 Definitions
"Confidential Materials" means all proprietary and trade secret assets of JeffCo Industries, LLC, including:
(a) musical skill implementations, domain playbooks, routines, and procedures under the skills repository;
(b) analytical reference texts, structural models, and knowledge assets;
(c) operational scripts, execution graphs, and automation code;
(d) the orchestration router kernel and prompt structuring architecture;
(e) system prompts, meta-prompts, steering guidelines, and dynamic instructions;
(f) execution harness transcripts, intermediate agent states, and reasoning traces;
(g) the compiled execute-only engine binary and the internal format of its cryptographic receipts; and
(h) any proprietary methodology, instructions, or prompts obtained or observed through a provider's logs, tracing, broadcast or any account-level view.
Confidential Materials strictly excludes:
(i) public skill names;
(ii) frontmatter descriptions shown as Methods in the studio catalog;
(iii) finalized delivered outputs and intermediate musical notation created for your projects; and
(iv) your own musical uploads, audio files, scores, and composition assets.
7.2 Permitted Use
You are granted a personal, non-exclusive, non-transferable, revocable license to access Confidential Materials solely for operating your own musical composition projects within the platform.
7.3 Prohibited Conduct
You agree not to engage in any of the following activities:
(a) scraping, harvesting, or bulk export of platform assets, prompts, or skills;
(b) reverse engineering, disassembling, or decompiling the execute-only engine binary;
(c) prompting, steering, or instructing the agent to print, dump or reproduce skill or instruction contents;
(d) performing competitive benchmarking, performance extraction, or comparative feature analysis; or
(e) training machine learning models or artificial intelligence systems on the platform's methodology or outputs.
7.4 Technical Measures Notice
The platform enforces the following technical measures to protect Confidential Materials and detect unauthorized disclosure:
- Attribution Tokens: Embedding per-user attribution tokens into exported PDF producer metadata, MusicXML software elements, and MIDI text metadata.
- Canary Lines: Inserting per-session canary lines into staged skill files to trace unauthorized disclosures.
- Leak Detector: Operating an automated leak detector whose verbatim-run arm withholds messages containing protected instructions; an account is suspended pending review upon a third block in a day.
- Skill Load Limits: Restricting accounts to 25 distinct skill loads per day.
- Payload Limits: Restricting accounts to 2 MiB of assistant text per day.
- Single Sandbox: Restricting each account to one live sandbox environment at any time.
- Device Confirmation: Requiring step-up security with new-device confirmation before authorizing sensitive actions.
7.5 Remedies
Unauthorized disclosure or misappropriation of Confidential Materials causes irreparable harm for which financial damages are inadequate. JeffCo Industries, LLC is entitled to seek immediate injunctive relief without bond, account suspension, project termination, and recovery of reasonable legal fees and costs.
7.6 Survival
All confidentiality obligations survive the closing of your account and the termination of this agreement. For questions regarding these terms, contact legal@quartertone.ai.
8. Third-Party Terms
When using managed provider inference, OpenRouter terms and each admitted model provider's terms bind your workloads. You agree to comply with all applicable terms, available in our third-party terms, and remain responsible for any violation thereof.
9. Acceptable Use
You agree not to misuse the platform. Acceptable use prohibits: bulk scraping or unauthorized mass exfiltration of musical models or skills; transmitting hostile, subversive, or prompt-injection instructions aimed at the platform infrastructure; or uploading infringing, unlawful, or defamatory content. Our repeat-infringement process reviews actioned copyright holds and may suspend or terminate accounts in appropriate circumstances.
10. Suspension and Termination
We reserve the right to suspend or terminate access upon detection of leak-detector blocks, rate-anomaly triggers, credit disputes, or material breach of these Terms. You may appeal any suspension through support within 14 days by contacting support@quartertone.ai. Idle threads are archived after 30 days of inactivity, and archived threads are kept for 90 days. Following termination, conversation transcripts are retained for 90 days, and a 7-day grace period applies before irreversible data deletion.
11. Copyright and DMCA Complaints
We respect intellectual property rights and respond to notices of alleged infringement under the Digital Millennium Copyright Act. To submit a notice or counter-notice, visit our copyright policy.
12. Disclaimers and Limitation of Liability
The platform is provided on an "as is" and "as available" basis without warranties of any kind. To the maximum extent permitted by law, our liability is limited to the fees paid by you in the twelve months preceding the claim.
13. Changes to Terms
We may revise these Terms from time to time. Material changes require re-acceptance upon your next login. If we raise a plan's price, reduce its included credits, or raise the rate at which credits are charged, we will email you at least 30 days before the change applies to you, and you may cancel before it does.
14. Governing Law and Venue
These Terms are governed by and construed in accordance with the laws of the State of New York, without regard to conflict of law principles. Any dispute arising out of or relating to these Terms shall be resolved exclusively in the state and federal courts located in New York County, New York.
15. Contact
If you have questions about these Terms, please contact JeffCo Industries, LLC by email at support@quartertone.ai or legal@quartertone.ai.
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