Terms of Use

1. Acceptance of these terms

By using the free drill at clefdrills.com, submitting the iOS waitlist form, or (once released) installing Clef for iOS, you agree to these Terms of Use. If you don't agree, please don't use the service. If you're using Clef on behalf of a school, studio, or organization, you're confirming you have the authority to accept these terms for that organization.

2. What Clef is

Clef is a sight-reading and music-theory practice tool. The free web version at clefdrills.com runs entirely in your browser: a treble-clef note-naming drill with optional MIDI keyboard input. Clef for iOS, in development, extends this with intervals, chords, progressions, additional input methods, and a spaced-repetition scheduler. Nothing here is a substitute for instruction from a qualified music teacher — it's a practice tool, not a course.

3. License to use the service

We grant you a personal, non-exclusive, non-transferable, revocable license to use the web trainer and (at general release) the iOS app for your own practice. You may not resell access, embed the trainer in another product, systematically scrape or bulk-download its content, or use automated tools against the waitlist endpoint. This license ends automatically if you violate these terms.

4. Acceptable use

• Don't submit false or throwaway addresses to the waitlist form to spam, abuse, or overload it — it's rate-limited and monitored, and repeated abuse may get your IP blocked.
• Don't attempt to reverse-engineer, decompile, or extract the underlying drill logic, note-scheduling algorithm, or staff-rendering code beyond what your browser naturally exposes.
• Don't use the service in any way that violates applicable law, infringes someone else's rights, or attempts to disrupt or overload the site or its email infrastructure.

5. The waitlist and your email

Joining the iOS waitlist means giving us permission to email you a one-time confirmation and, later, a single launch notification. See the Privacy Policy for exactly what's collected and how to have it deleted. You can ask to be removed from the waitlist at any time by emailing support@clefdrills.com.

6. Intellectual property

"Clef" and the Clef mark, the site design, and the drill's original code and content are owned by Clef's operator, except where noted. Music notation glyphs are set in Bravura, licensed under the SIL Open Font License, with attribution retained on every page. Nothing in these terms transfers ownership of any of that to you — you're licensed to use the service, not to copy its design or code elsewhere.

7. Third-party links

This site and its blog link out to other independent tools and services (for example, in the blog posts and the site footer). Those are informational references, not endorsements or paid placements unless explicitly labeled, and we're not responsible for the content, availability, or practices of sites we don't operate.

8. No warranty

Clef is provided "as is" and "as available," without warranties of any kind, express or implied — including any implied warranty of merchantability, fitness for a particular purpose, or non-infringement. We don't guarantee the trainer will be error-free, uninterrupted, or available at any given time; it's an actively developed, largely solo-built product, and features (including free-tier scope) may change as it evolves.

9. Limitation of liability

To the fullest extent permitted by law, Clef's operator isn't liable for any indirect, incidental, special, or consequential damages arising from your use of, or inability to use, the service — including lost practice time, lost data (such as a browser-local best-streak value cleared by clearing site data), or any other intangible loss. Your only remedy for dissatisfaction with the service is to stop using it.

10. Changes and termination

We may change, suspend, or discontinue any part of the service, including the free web trainer, at any time, and may update these terms as the product evolves — most significantly once Clef for iOS reaches general release and its own in-app EULA applies alongside this page. Material changes will update the effective date above.

11. Contact

Questions about these terms: email support@clefdrills.com. See also our Privacy Policy and Support page.