Slash chords

What does C/E actually mean? The note after the slash is the bass — and understanding that one rule unlocks a huge part of written chord notation.

What the slash means

A slash chord writes a chord name on the left and a bass note on the right, separated by a forward slash. The format is always: Chord / Bass note.

The note after the slash tells you what note should be at the bottom — the lowest note in the voicing. Everything else about the chord stays the same.

When the slash chord is an inversion

If the bass note is already a note in the chord, the slash chord is simply an inversion written explicitly. C/E puts E (the third of C major) in the bass — that is first inversion. C/G puts G (the fifth) in the bass — that is second inversion.

When the bass note is outside the chord

Sometimes the bass note is not in the original chord. These are called "pedal" slash chords or "non-chord-tone" bass notes. They create a distinctive suspended or floating effect.

F/G is one of the most common slash chords in gospel and contemporary worship. It sounds like a dominant with a lot of open space — the G bass note pulls toward C major, but the F chord on top keeps things floating.

Common slash chords and what they do

Why slash chords appear in music

Slash chords give arrangers and composers precise control over the bass voice. In a band context, the bassist plays the note after the slash while the pianist plays the full chord above. This separates harmonic responsibility and creates richer, more layered sound.

For solo keyboard players, slash chords are a notation tool. You keep the chord with your right hand and emphasise the bass note in your left. The result is smoother bass movement — notes stepping by half-step or whole-step rather than jumping across large intervals.

How ChordBeam reads slash chords

When you play an inverted chord on your MIDI keyboard, ChordBeam identifies the chord quality (e.g., C major) and the bass note separately. If you play E, G, C with E at the bottom, it detects C/E — showing you both the chord name and the inversion bass note.

This makes ChordBeam useful for learning pieces that use a lot of slash chord notation. Play what you see on the page, then watch the detector confirm whether you have the right inversion.