MIDI First Note is a free diagnostic aid. A green card means the tested signals worked in this browser session; it cannot guarantee another lesson site, operating system, audio route, cable, or room setup will behave identically.
Using the service
You may use, share, study, and adapt the application in accordance with its MIT License. Use it only with devices and browsers you are authorized to access. Do not attempt to interfere with the service or use it to harm others.
Availability
The service is provided “as is” without warranties. Browser MIDI support varies. Audio and practical tap readings depend on hardware, drivers, browser scheduling, system load, and human reaction time; they are not laboratory measurements.
Support-card interpretation
The card is a point-in-time troubleshooting summary, not a certification. It intentionally omits identifying hardware information, so a teacher may still need to ask follow-up questions.
Liability
To the extent allowed by law, the maintainers are not liable for missed lessons, device problems, data loss, or other damages arising from use of this free utility.
Changes
These terms may change as the tool evolves. Material changes will appear on this page with an updated effective date.
Privacy
Read the privacy policy for the intentionally small data footprint.