코드 식별기
음표를 선택하여 코드 식별 — 피아노 또는 텍스트 입력
코드를 식별하려면 2개 이상의 음표를 선택하세요
—
—
사용 방법
도구 열기
설정이 필요 없습니다 — 도구가 브라우저에서 즉시 로드됩니다.
조작하고 탐색하기
마우스, 키보드 또는 터치로 실시간 조작이 가능합니다.
언제 어디서나 사용 가능
데스크톱과 모바일 모두 지원 — 이동 중에도 연습하거나 제작할 수 있습니다.
이 도구를 사용하는 이유
100% 무료
숨겨진 비용도, 프리미엄 등급도 없습니다 — 모든 기능이 무료입니다.
설치 불필요
브라우저에서 완전히 실행됩니다. 소프트웨어를 다운로드하거나 설치할 필요가 없습니다.
프라이빗 & 안전
데이터가 기기 밖으로 나가지 않습니다. 어떤 서버에도 업로드되지 않습니다.
모바일 지원
완전 반응형 — 스마트폰, 태블릿, 데스크톱에서 사용할 수 있습니다.
How Chord Identification Works
Key Takeaways
- Chords are built by stacking intervals — the specific combination determines the chord quality (major, minor, diminished, etc.).
- The same notes can be named differently depending on which note is the root (inversions).
- This tool uses the tonal.js library to detect all possible chord names from your selected notes.
Chord identification determines a chord's name and quality from a set of notes. Whether you are transcribing by ear, analyzing a score, or experimenting with voicings, knowing what chord you are playing unlocks deeper musical understanding. This tool analyzes your selected notes and returns all matching chord names.
50+
Chord qualities recognized
Core Concepts
Triads: The Building Blocks
A triad is a three-note chord: root, third, and fifth. Major triads use major third + minor third (C–E–G). Minor triads reverse: minor third + major third (C–Eb–G).
Seventh Chords
Adding a note a third above the fifth creates seventh chords. Types include major 7th (Cmaj7), dominant 7th (C7), minor 7th (Cm7), and half-diminished (Cm7b5).
Inversions & Voicings
When a note other than the root is in the bass, the chord is inverted. C/E (1st inversion) and C/G (2nd inversion) contain the same notes but sound distinctly different.
Extended & Altered Chords
Jazz and contemporary music use 9th, 11th, and 13th chords. Altered chords modify the 5th or 9th with sharps or flats for added tension.
Tips for Chord Identification
Start by identifying the root — usually the lowest note or the one that sounds most stable.
Count semitones between notes: root to major third is 4, root to minor third is 3.
If multiple names are returned, consider musical context — the chord fitting the key is usually correct.
Use the piano input to click notes, or type note names directly (e.g. C E G Bb) for quick identification.
All chord analysis is performed locally in your browser using the tonal.js library. No note data is sent to any server.