John Mayer is the founder, author, and independent music researcher behind VocalRangeTester.com. His work focuses on helping singers and curious voice users better understand vocal range, pitch, voice types, vocal registers, and related singing concepts through practical educational content and browser-based tools.
John Mayer — Founder & Author at VocalRangeTester.com
John approaches vocal topics from a research and publishing perspective. He is not a vocal coach, speech-language pathologist, or medical professional, and VocalRangeTester.com is not intended to replace individualized instruction, diagnosis, or treatment from a qualified professional.
About John Mayer
John created VocalRangeTester.com to make vocal-range information and basic voice-testing tools easier to understand and use.
Questions such as “What notes can I comfortably sing?”, “What voice type might fit my range?”, or “How does my range compare with a typical tenor, alto, or soprano range?” can look simple at first. In practice, the answers often depend on more than the lowest and highest note someone can produce.
That is why John’s work focuses not only on measurements, but also on explaining their limitations.
Across VocalRangeTester.com, he researches and writes about topics including:
- vocal range and vocal-range measurement;
- soprano, mezzo-soprano, contralto, countertenor, tenor, baritone, and bass ranges;
- tessitura, vocal registers, vocal breaks, falsetto, head voice, chest voice, and mixed voice;
- pitch recognition and pitch accuracy;
- well-known singers and reported vocal ranges;
- basic singing technique and vocal education;
- browser-based voice and pitch testing tools.
You can explore this work through the VocalRangeTester Blog and the site’s collection of voice and singing tools.
How John Approaches Vocal-Range Research
Vocal range information is not always as definite as a single number or note range may suggest.
When researching a singer, voice type, or vocal concept, John aims to distinguish between information that is reasonably well supported and claims that depend on interpretation, isolated performances, unofficial range compilations, or uncertain recordings.
For singer-related articles, this may involve comparing multiple recordings, performances, interviews, published references, and other credible material where available. When reliable sources disagree, the goal is to explain that uncertainty rather than present a disputed figure as unquestionable fact.
For educational content, John aims to use established music terminology carefully while keeping explanations understandable for readers who may not have formal music training.
The broader standards used across the website—including sourcing, corrections, updates, use of AI-assisted workflows, and editorial review—are explained in our Editorial Guidelines.
Accuracy, Context, and Limitations
One of the most important principles behind VocalRangeTester.com is that a vocal-range result should be treated as useful information, not as a complete assessment of a singer’s voice.
A browser-based test can help identify notes that a microphone and pitch-detection system can recognize during a session. That does not automatically determine a person’s professional voice classification, ideal repertoire, vocal health, tessitura, passaggi, tone quality, or technical ability.
Voice type can involve factors beyond maximum range, including where the voice is most comfortable, how registers transition, vocal weight, timbre, and training.
You can read more about how the site’s testing approach works on the How It Works page.
John also avoids presenting VocalRangeTester.com as a source of medical diagnosis. Articles discussing vocal strain, vocal cords, warm-ups, breathing, or related health topics are provided for general educational purposes. Persistent pain, hoarseness, sudden voice changes, or other concerning symptoms should be discussed with an appropriately qualified healthcare professional.
Building Useful Voice Tools
John oversees the content, purpose, and user experience of the tools available on VocalRangeTester.com.
The site includes tools designed to help users explore different aspects of their voice and musical hearing, including the Vocal Range Calculator, Pitch Detector, Pitch Accuracy Test, and Voice Type Test.
These tools are designed as educational and exploratory resources rather than substitutes for a trained vocal teacher, clinician, or formal voice assessment.
Because microphone access and audio processing can also raise privacy questions, current information about data handling and site practices is maintained separately in the Privacy Policy.
Why Transparency Matters
Voice-related websites can easily make results sound more precise than they really are.
John’s goal is to avoid that.
If a vocal range is uncertain, the article should make that uncertainty clear. If a tool provides an estimate, it should be described as an estimate. If a topic falls outside the limits of browser-based testing, readers should be told where those limits are.
The same principle applies to corrections. Vocal information can change as better recordings, interviews, documentation, or other evidence becomes available.
If you notice a factual error, questionable source, broken tool, or explanation that needs clarification, please use the Contact page to let us know.
About VocalRangeTester.com
VocalRangeTester.com is an independent educational website focused on vocal range, singing, pitch, voice classification, and interactive voice tools.
The site is intended to help readers understand their voices more clearly without turning simplified test results into absolute conclusions.
For more information about the website, its purpose, and the standards behind its content, visit About VocalRangeTester.com.
Follow VocalRangeTester
Updates and selected content from the site are also shared through the official VocalRangeTester Facebook page.
Author Details
Name: John Mayer
Role: Founder, Author & Independent Music Researcher
Website: VocalRangeTester.com
Primary Topics: Vocal range, voice types, pitch, singing education, singer range research, and browser-based vocal tools
Editorial Standards: Editorial Guidelines
Contact & Corrections: Contact VocalRangeTester
Facebook: VocalRangeTester

John Mayer is a vocal analysis and music education writer specializing in vocal range testing, voice type analysis, pitch recognition, and singing improvement tools for singers, musicians, performers, and beginners. He creates practical content focused on vocal training, singing techniques, and voice analysis tools to help users better understand and improve their vocal abilities.