Chord Roman Numeral Calculator

Roman Numeral Notation:

\[ \text{I, II, III, IV, V, VI, VII} \]

Roman Numeral:

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1. What is Roman Numeral Notation?

Roman numeral notation is a system used in music theory to represent chords by their scale degree in a key. It provides a universal way to analyze harmonic progressions regardless of the actual key.

2. How Does the Calculator Work?

The calculator uses a simple mapping system:

\[ \text{1 → I, 2 → II, 3 → III, 4 → IV, 5 → V, 6 → VI, 7 → VII} \]

Where:

Scale degree 1 = I (Tonic)
Scale degree 2 = II (Supertonic)
Scale degree 3 = III (Mediant)
Scale degree 4 = IV (Subdominant)
Scale degree 5 = V (Dominant)
Scale degree 6 = VI (Submediant)
Scale degree 7 = VII (Leading Tone)

3. Importance of Roman Numeral Analysis

Details: Roman numeral analysis helps musicians understand chord functions and harmonic progressions, making it easier to transpose music to different keys and compose in a structured way.

4. Using the Calculator

Tips: Simply enter a scale degree (1-7) and the calculator will return the corresponding Roman numeral. The scale degree must be an integer between 1 and 7.

5. Frequently Asked Questions (FAQ)

Q1: What about minor keys?
A: The same numerals are used, but typically in lowercase (i, ii°, III, iv, v, VI, VII) to indicate minor tonality.

Q2: How are seventh chords notated?
A: A superscript 7 is added (e.g., V7 for dominant seventh).

Q3: What do the numerals represent functionally?
A: I = tonic, IV = subdominant, V = dominant, etc., showing harmonic relationships.

Q4: How are inversions shown?
A: Inversions are indicated with figured bass notation (e.g., I6 for first inversion).

Q5: Is this system used in all music?
A: Primarily in Western classical and jazz theory, less common in pop/rock notation.