Learn › C#7 Chord Inversions: All Four Positions
New Released in April 2026
C#7 Chord Inversions: All Four Positions
C sharp dominant 7th chord inversions: four positions, C#7, C#7/E#, C#7/G# and C#7/B. Same four notes (C# E# G# B), a different one in the bass. Below: each position on the keyboard, a one-look rule to tell them apart, fingering and a ii-V-I that uses them.
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- MIDI keyboard
- Digital or acoustic piano
- Guitar
- Computer, phone or tablet
Spot each C#7 inversion in one look
Look for the two notes that sit next to each other: none in root position, at the top in the 1st inversion, in the middle in the 2nd, at the bottom in the 3rd.
| Position | Bass | Name | Figured bass | Rule |
|---|---|---|---|---|
| Root position | C# | C#7 | 7 | no neighbours: four notes evenly stacked (major 3rd + minor 3rd + minor 3rd) |
| 1st inversion | E# | C#7/E# | 6/5 | neighbours at the top (minor 3rd + minor 3rd + major 2nd) |
| 2nd inversion | G# | C#7/G# | 4/3 | neighbours in the middle (minor 3rd + major 2nd + major 3rd) |
| 3rd inversion | B | C#7/B | 4/2 | neighbours at the bottom (major 2nd + major 3rd + minor 3rd) |
The four positions of C#7
Root position starts on C#, then E#, G# and B.
Root position: C# E# G# B
1st inversion: E# G# B C#
2nd inversion: G# B C# E#
3rd inversion: B C# E# G#
- Root position: starts on C#, a black key; black keys: C#, G#
- 1st inversion: starts on E#, a white key; black keys: G#, C#
- 2nd inversion: starts on G#, a black key; black keys: G#, C#
- 3rd inversion: starts on B, a white key; black keys: C#, G#
Move through G#m7 → C#7 → F#maj7 without jumping
Each chord uses the position nearest to the one before, so the hand barely moves and most notes step by one or two keys.
- From G#m7 to C#7: B stays, D# → C#, F# → E#, G# stays.
- From C#7 to F#maj7: B → A#, C# stays, E# stays, G# → F#.
Fingering for C#7 in every position
| Position | Right hand | Left hand |
|---|---|---|
| Root position (C# E# G# B) | 1-2-3-5 | 5-3-2-1 |
| 1st inversion (E# G# B C#) | 1-2-3-5 | 5-3-2-1 |
| 2nd inversion (G# B C# E#) | 1-2-3-5 | 5-3-2-1 |
| 3rd inversion (B C# E# G#) | 1-2-3-5 | 5-3-2-1 |
Four notes, four fingers: 1-2-3-5 in the right hand and 5-3-2-1 in the left work in every position.
Make C#7 inversions automatic
In ChordRunner any inversion of C#7 counts: play C#7/E#, C#7/G# or C#7/B and the runner jumps. MIDI keyboard or microphone, both work.
Play the demoCommon questions
What are the inversions of C#7?
Root position C# E# G# B, 1st inversion E# G# B C# (C#7/E#), 2nd inversion G# B C# E# (C#7/G#) and 3rd inversion B C# E# G# (C#7/B).
What is C#7/B?
It is C#7 in 3rd inversion: B C# E# G# from the bottom, with the seventh in the bass. Figured bass calls it 4/2.
Can I practise C#7 inversions with a MIDI keyboard or microphone?
Yes. ChordRunner detects a USB MIDI keyboard automatically and also hears a piano through the microphone; every inversion of C#7 counts.
Your instrument is the controller.
ChordRunner is a browser game that teaches piano and guitar chords: a chord appears on screen, you play it on a real instrument, and your runner jumps. MIDI keyboard or microphone, both work.
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