Privacy Policy for Circle of Fifths

Introduction

Welcome to Circle of Fifths — an interactive music theory platform that helps you understand key signatures, scales, chord functions, and chord progressions through an intuitive Circle of Fifths (and Fourths) experience with instant audio preview. Your privacy matters to us. This policy explains what information we collect, how we use it, and the choices you have when using Circle of Fifths.

Information We Collect and How We Use It

1. Interactive Inputs and Audio Preview

   • What We Collect: In‑app interactions such as selected key/tonic, mode (major/minor), relative/parallel toggles, circle of fourths view, progression selections, and audio preview events.
   • How We Process: We use this information to render the interactive chart, map key signatures and diatonic chords, and play back notes/chords for instant audio feedback. Processing primarily occurs client‑side; where server processing is needed (e.g., recommendations or search), it is handled on secure infrastructure.
   • Storage: We do not permanently store your interactive inputs or audio content. Temporary data may be kept in memory during your session. Optional preferences (e.g., last selected key, audio on/off, theme, locale) may be stored in your browser (cookies/local storage) for convenience.

2. Account Information (if you create an account)

   • What We Collect: Your name, email address, and other basic details you provide.
   • Purpose: To manage your account, deliver customer support, and provide any account‑related features you opt into.

3. Usage Details

   • What We Collect: Interactions within the app (e.g., features used, settings toggled), aggregated session data, and timestamps.
   • Purpose: To understand feature usage, improve performance, and guide product decisions.

4. Device Information

   • What We Collect: Device type, operating system, browser type/version, and basic technical diagnostics.
   • Purpose: To ensure compatibility, debug issues, and optimize performance across devices.

5. Cookies and Local Storage

   • What We Store: Preferences (e.g., theme, locale, last selected key/mode, audio preference), session state, and optional analytics identifiers.
   • Purpose: To keep the experience fast and consistent, remember your choices, and analyze anonymized usage trends.

6. Payment and Billing Information (if applicable)

   • What We Collect: Payment method details, billing address, and transaction metadata if you purchase premium features (e.g., extended content, advanced tools).
   • Purpose: To process transactions, manage entitlements, and comply with financial laws. Payments are handled through trusted providers (e.g., Stripe) and we do not store full card details.

Data Storage and Security

We take appropriate technical and organizational measures to protect your information. Where processing occurs in‑browser, your interactions and audio playback stay on your device by default. For any data we do store, we employ encryption in transit, access controls, and monitoring. No method of transmission or storage is 100% secure; we cannot guarantee absolute security.

Information Sharing and Disclosure

We do not sell your personal information. We may share limited data:

• Service Providers: With vetted vendors who assist in operating the service (e.g., hosting, analytics, payments), bound by confidentiality obligations.
• Legal Compliance: To comply with laws, regulations, or valid legal processes.
• Protection: To protect the rights, property, or safety of our users, the public, or Graffiti Generator.
• Aggregated Insights: We may share anonymized, aggregated statistics that do not identify individuals.

Your Choices and Rights

• Preferences: You can manage cookies/local storage through your browser settings. Some features may rely on these settings to function.
• Access and Deletion: If you have an account, you can request access to, correction of, or deletion of your personal information.
• Opt‑out: You may opt out of non‑essential analytics where available.

Children's Privacy

Circle of Fifths is not directed to children under the age of 13. We do not knowingly collect personal information from children. If you believe a child has provided us with personal information, contact us and we will take appropriate action.

Changes to This Policy

We may update this Privacy Policy from time to time. When we do, we will post the updated version on this page and update the effective date, if provided. Your continued use of the service after changes become effective signifies your acceptance of the revised policy.

Contact Us

If you have questions or requests regarding this Privacy Policy or our data practices, please contact us:

• Email: Contact us through our website contact form
• Website: Visit our help center for support

By using Circle of Fifths, you consent to this Privacy Policy and agree to its terms. Thank you for trusting us with your information!