Four musicians and a fifth listening chair QUARTET PARALLAX
Nº 01
THE FIFTH CHAIR
AN INTERACTIVE CHAMBER MUSIC OBSERVATORY

String Quartet Seating Simulator

Four musicians. One room.
Infinite perspectives.

Move the musicians. Change your seat. Hear the quartet anew.

01 Press play02 Move the musicians03 Compare A & BDiscover the science ↗
THE LIVING STAGE TOP-DOWN STAGE PLAN
UPSTAGEAUDIENCE / YOUR PERSPECTIVE
↔ Drag a chair. Change your perspective.STAGE / 01
HEADPHONES RECOMMENDED00:00 / 00:32
02 / A–B LISTENING DESK

Same music. A different perspective.

Switch the layout. Keep the moment.

Press Play, then switch the seating preset. Start with a comfortable headphone volume.

ACT II / THE FOUR VOICES

A chamber hall you can move.

01 / VIOLIN I

The first violin often introduces a melody. Solo it, then bring the other parts back to hear the context.

02 / VIOLIN II

The second violin is an independent partner. Opposing the two violins makes their left–right replies easier to compare.

03 / VIOLA + CELLO

Viola and cello connect harmony, inner motion and bass. Muting them reveals what the upper voices depend on.

ACT III / THROUGH THE CENTURIES

Four chairs, many conversations

Quartets choose layouts for sight lines, ensemble communication, repertoire and room acoustics. These presets are practical starting points, not universal historical rules. “Left” and “right” here always mean the audience’s view.

Seating arrangement← Violin I / Cello →
01Adjacent violinsIIIVaVcI · II · Va · Vc
02Antiphonal violinsIVcVaIII · Vc · Va · II
03Cello in the middleIIIVcVaI · II · Vc · Va
ACT IV / THE SCIENCE OF LISTENING

The science of listening

Position → perspective

Stereo panning changes the left–right balance. HRTF uses a generic head model to suggest direction over headphones; perception differs between listeners.

Distance → direct sound

This model reduces level with distance. It does not simulate a player adapting their bowing, body occlusion or a measured concert hall.

Room → overlap

The room presets use generated decaying noise as an impulse response. They demonstrate reverberation, not recordings of named venues.

Listening questions

Is this a real quartet recording?

No. Four independent synthesized voices play original short studies. No commercial performance or copyrighted recording is used.

Which arrangement is best?

There is no single best arrangement. Compare a repeated passage and listen for the separation, balance and musical response you prefer.

Is this a scientific hearing test?

No. The displayed distance and pan values come from a simplified model. They do not measure hearing ability, acoustic clarity or a real hall.

How do I share a setup?

Choose Share this layout. The URL stores positions, listener, demo, room, rendering, mix and playback position. No account is required.

THE LISTENING CHALLENGE

Let your ears take the lead.

X is randomly chosen from your saved A and B layouts. Hide the stage and identify the arrangement by listening. A short experiment, not a hearing test.

Save two different layouts, A and B, first.

FINALE / YOUR QUARTET

About

QUARTET PARALLAX is an independent, browser-based listening laboratory. The fifth chair is yours: explore how perspective shapes musical balance. Audio starts only when you press Play.

Privacy & sound

The experiment runs in your browser. Layout sharing uses the URL fragment; the tool does not upload microphone recordings or ask for microphone access. Google/Blogger and existing advertising services may process data under their own policies.

Google Privacy Policy

Further reading

Web Audio API · MDN · W3C Web Audio specification · OpenScore String Quartets