1. What is Seventh Chord Inversion?

A seventh chord inversion occurs when a note other than the root is in the bass position. Inversions change the chord's voicing while maintaining its harmonic function.

2. How Does the Calculator Work?

The calculator rotates the chord notes based on the inversion selected:

Where:

• Root Position: Root - Third - Fifth - Seventh
• First Inversion: Third - Fifth - Seventh - Root
• Second Inversion: Fifth - Seventh - Root - Third
• Third Inversion: Seventh - Root - Third - Fifth

3. Types of Seventh Chords

Major 7th: Root, Major 3rd, Perfect 5th, Major 7th
Minor 7th: Root, Minor 3rd, Perfect 5th, Minor 7th
Dominant 7th: Root, Major 3rd, Perfect 5th, Minor 7th
Diminished 7th: Root, Minor 3rd, Diminished 5th, Diminished 7th

4. Using the Calculator

Steps: Select the root note, chord type, and desired inversion. The calculator will show both the original chord and the inverted voicing.

5. Frequently Asked Questions (FAQ)

Q1: Why use chord inversions?
A: Inversions create smoother voice leading, vary harmonic texture, and allow for different bass movements while maintaining the same harmonic function.

Q2: How do inversions affect chord symbols?
A: Inversions are often indicated with slash notation (e.g., Cmaj7/E for first inversion) or figured bass symbols.

Q3: Are all inversions equally common?
A: Root position and first inversion are most common. Third inversion of dominant seventh chords is common in classical cadences.

Q4: Do inversions change the chord's function?
A: The basic harmonic function remains, but inversions can affect the chord's stability and tendency to resolve.

Q5: How do I voice seventh chord inversions on piano?
A: Spread the notes across both hands, keeping the bass note lowest. The right hand can play the remaining notes in close or open position.