Written by Daniel Murphy | Last updated: June 2026
Who Writes the Content on This Site
All content published on GuitarChordIdentifier.com is written by Daniel Murphy, guitar theory educator, audio analysis developer, and founder of this site. There are no guest contributors, no outsourced writers, and no AI-generated articles published without full review, fact-checking, and rewriting by Daniel personally.
Every page — whether a technical explanation of polyphonic pitch detection, a guide to understanding chord identification results, an FAQ answer, or a legal disclosure — is the direct product of Daniel’s research into guitar fretboard theory, chord voicing analysis, interval-based chord identification, and the specific challenges of browser-based audio analysis applied to polyphonic guitar sound.
Editorial Standard
The single test every piece of content on this site must pass before publication:
Would an experienced guitarist, a guitar theory educator, or an audio analysis engineer reading this page find it technically accurate, practically useful for identifying real guitar chords, and honest about where polyphonic pitch detection produces unreliable or ambiguous results — or would they find something oversimplified, incorrect, or missing?
If the answer is anything other than “accurate, useful, and honest,” the content is not ready to publish. Content that identifies a chord without explaining the interval basis for the identification, or that does not disclose the limitations of polyphonic detection for complex voicings, is not acceptable on any page of this site.
How Tool Pages Are Written
The tool pages on GuitarChordIdentifier.com are written to document three things with equal rigour:
1. What the tool calculates and how — for both input modes Every tool page names the specific interval analysis logic, pitch class extraction method, and chord name lookup procedure used in the fret input mode, and the specific Web Audio API methods, polyphonic pitch detection pipeline, and chord matching algorithm used in the microphone mode. Both pipelines are documented in full on the How It Works page. Tool pages summarise both pipelines in user-facing language without sacrificing technical accuracy.
2. What the result means A chord identification result is only useful if the musician understands what interval set produced the name, whether the chord is in root position or an inversion, and what variables — voicing complexity, microphone quality, string noise — might cause the identified name to differ from the intended chord. Every result explanation on this site includes this contextual layer.
3. What the tool cannot determine The fret input mode cannot detect open strings not selected, cannot assess chord quality from muted strings, and cannot determine functional harmonic context. The microphone mode cannot reliably separate closely voiced partials in dense chords, cannot handle highly distorted guitar tone, and is subject to polyphonic detection accuracy limits that increase with chord complexity. These limitations are stated explicitly on every relevant page. The FAQ addresses the most commonly misunderstood aspects of guitar chord identification.
How Technical Articles Are Researched
Guitar Fretboard Theory and Chord Voicing Content Articles covering pitch class sets, interval analysis, chord quality determination, inversion identification, and chord naming conventions are researched against established guitar theory literature and music theory texts. Where chord naming conventions differ between classical, jazz, and pop guitar contexts — for example, slash chord notation vs Roman numeral inversion notation — this is documented and the convention used by the tool is stated.
Polyphonic Pitch Detection Content Articles covering Web Audio API polyphonic pitch detection, spectral peak extraction, harmonic series analysis, and the accuracy limits of browser-based chord detection are researched against the W3C Web Audio API specification, MDN Web Docs, and published audio analysis literature. Accuracy claims are documented with specific reference to the conditions under which they apply — chord complexity, microphone quality, acoustic environment.
Guitar Playing and Practical Application Content Articles covering chord usage in specific playing styles — fingerpicking, strumming, jazz comping, classical guitar — are researched against genre-specific guitar education resources and verified against representative repertoire. Daniel does not publish claims about specific playing techniques without verification against established guitar pedagogy.
AI Content Policy
Daniel uses AI writing tools as a research aid and first-draft accelerator. No AI-generated content is published on this site without the following process:
- Fact-check every technical claim — any chord formula, interval relationship, pitch detection algorithm description, or audio analysis accuracy figure is verified against a primary source before it appears on the page
- Rewrite for accuracy and specificity — AI drafts are rewritten to reflect Daniel’s research knowledge; generic music content is replaced with guitar-chord-identification-specific content grounded in fretboard theory and audio analysis
- Add site-specific context — general chord theory explanations are replaced with examples, fretboard diagrams in text form, and worked identifications relevant to the tools on this site
- Final review before publication — every page is read in full by Daniel before it goes live
Corrections Policy
If a technical or theoretical error is identified on any page — an incorrect chord formula, a misidentified inversion, an inaccurate pitch detection description, or an incorrect fretboard position — it will be corrected as a priority. Corrections are made to the live page and the “Last updated” date is revised. Significant corrections are noted at the top of the relevant page.
To report a correction, use the Contact page with the subject line “Content Correction” and the specific page URL and error. Daniel reviews all correction submissions personally. Response time: 48–72 hours.
What This Site Does Not Publish
- Chord identification results presented without disclosure of the interval basis and naming convention used
- Content implying the microphone-based chord detection mode produces results as reliable as fret input for complex voicings
- Guitar tab or notation reproductions of copyrighted works
- Medical, clinical, or hearing health advice of any kind
- Link exchange requests, sponsored content, or paid product placements of any kind
- Content written by contributors who have not verified their claims against primary guitar theory or audio analysis sources
Related Pages
- About GuitarChordIdentifier.com — what this site is, who runs it, and who it is for
- How It Works — full technical documentation of both chord identification pipelines
- Data Security — how microphone audio is handled and why it never leaves your device
- Contact — to report errors, ask technical questions, or submit data requests
These guidelines were written by Daniel Murphy and apply to all content published on GuitarChordIdentifier.com. Last updated: June 2026.