A pedal point (or pedal tone) is a single note - usually in the bass - that is sustained or repeated while the chords above it change. It creates a grounding anchor that the harmony moves around - while the upper chords change. The chords can create tension against the static bass, and every time a chord contains the pedal note, it briefly resolves.
How pedal points work
Normally, the bass follows the chord roots. With a pedal point, the bass stays stays put while everything else moves. Some chords will clash with the pedal, creating tension. Others will agree with it, creating moments of resolution.
Progression with C pedal bass
The bass stays on C throughout - the chords create and release tension against it
Types of pedal points
Tonic pedal (I)
The root note of the key held in the bass. It keeps the tonal centre present while the upper harmony changes, and can work well in intro or outro sections.
Dominant pedal (V)
The 5th scale degree held in the bass. Against changing harmony it can create a sustained dominant pressure, especially before a return to the tonic.
Inverted pedal (top voice)
A sustained note in the highest voice while lower parts change. The repeated upper pitch links otherwise changing chords and can make their clashes more noticeable.
Inner pedal (middle voice)
A sustained note in a middle voice. It can connect the voicing while remaining less exposed than a bass or top-note pedal.
Tonic vs dominant pedal
The pedal note changes which scale degree remains fixed while the upper chords move:
Tonic pedal (C)
The tonic bass keeps the root present while the upper chords change, so the harmony can move without losing that reference point.
Dominant pedal (G)
The dominant bass keeps the fifth below changing chords, which can sustain tension until the harmony clarifies or resolves.
Pedal points in production
Pedal points show up constantly in modern production, often without producers realising they're using them:
Sub bass drone
A sustained sub bass note while pads/synths change above
808 root note
Playing the same 808 note under different chords for cohesion
High string sustain
Holding a high violin note while the progression moves
Synth pad drone
A pad playing one chord while a lead plays a progression over it
Try it
Tap to hear how the same chords sound different over a C pedal bass. The first agrees with the pedal, the second clashes:
Now compare how the same upper chord changes when the pedal note changes underneath it.
Same chord above, different pedal below - completely different mood.
Key takeaway
A pedal point is a sustained note (usually bass) that stays while chords move above it. Tonic pedals create stability, dominant pedals create forward drive. The tension between the static pedal and changing chords is what makes pedal points so compelling. They're one of the simplest and most effective harmonic tools.
Next: harmonic rhythm - how often your chords change and why it matters.
Hear advanced harmony in action
Starts generates chord progressions using voice leading, tensions, and modulation.