YUZU PATCH
MIDI Visualizer Instruments MIDI guide
Free online instrument library

Play 158 instruments in your browser.

Pick a piano, synth, organ, guitar, bass, string, horn, woodwind, percussion sound, or something stranger. Use a MIDI keyboard, your computer keyboard, or touch—without installing a plug-in or opening a studio project.

Open Yuzu Patch free See the complete instrument list
158playable instrument presets
13searchable sound families
3 waysMIDI, QWERTY, or touch
One place to catch an idea quickly.

Yuzu Patch consolidates original browser synths and openly licensed instrument collections behind one searchable picker. Change the sound without changing the setup, then add a reactive visual world when you want to see the music move.

01

How to play an instrument online

  1. Open the free Yuzu Patch browser app.
  2. Play immediately with the on-screen piano or QWERTY keys, or connect a MIDI keyboard in desktop Chrome or Edge.
  3. Open the searchable Instrument picker and choose a sound. A free sign-in unlocks instrument changes and saves your preference.
  4. Keep playing, switch visual worlds, or record the idea with its musical context.

The selected instrument stays with you as you move between visual maps, so comparing a piano, synth, string section, or horn takes seconds.

02

Complete online instrument list

These are the 158 playable presets currently available in Yuzu Patch. Some acoustic instruments appear more than once because the shelf includes alternate sample sets from different credited libraries.

Pianos & keys

11 sounds

Grand Piano, Acoustic Grand Piano, Bright Acoustic Piano, Celesta, Clavinet, Electric Grand Piano, Electric Piano 1, Electric Piano 2, Harpsichord, Honkytonk Piano, Piano.

Organs

7 sounds

Church Organ, Drawbar Organ, Percussive Organ, Reed Organ, Rock Organ, Harmonium, Organ.

Guitars

11 sounds

Acoustic Guitar Nylon, Acoustic Guitar Steel, Distortion Guitar, Electric Guitar Clean, Electric Guitar Jazz, Electric Guitar Muted, Guitar Harmonics, Overdriven Guitar, Guitar Acoustic, Guitar Electric, Guitar Nylon.

Basses

9 sounds

Acoustic Bass, Contrabass, Electric Bass Finger, Electric Bass Pick, Fretless Bass, Slap Bass 1, Slap Bass 2, Bass Electric, Contrabass.

Strings

10 sounds

Cello, Orchestral Harp, Pizzicato Strings, String Ensemble 1, String Ensemble 2, Viola, Violin, Cello, Harp, Violin.

Brass

10 sounds

Brass Section, French Horn, Muted Trumpet, Trombone, Trumpet, Tuba, French Horn, Trombone, Trumpet, Tuba.

Winds

20 sounds

Alto Sax, Baritone Sax, Bassoon, Blown Bottle, Clarinet, English Horn, Flute, Harmonica, Oboe, Ocarina, Pan Flute, Piccolo, Recorder, Soprano Sax, Tenor Sax, Whistle, Bassoon, Clarinet, Flute, Saxophone.

Synths & pads

33 sounds

Warm Poly, Velvet Pad, Glass FM, Analog Brass, Soft Pluck, Digital Bell, Hollow Organ, Deep Bass, Bright Lead, Lead 1 Square, Lead 2 Sawtooth, Lead 3 Calliope, Lead 4 Chiff, Lead 5 Charang, Lead 6 Voice, Lead 7 Fifths, Lead 8 Bass Lead, Pad 1 New Age, Pad 2 Warm, Pad 3 Polysynth, Pad 4 Choir, Pad 5 Bowed, Pad 6 Metallic, Pad 7 Halo, Pad 8 Sweep, Synth Bass 1, Synth Bass 2, Synth Brass 1, Synth Brass 2, Synth Choir, Synth Drum, Synth Strings 1, Synth Strings 2.

Mallets & bells

8 sounds

Glockenspiel, Marimba, Music Box, Tinkle Bell, Tubular Bells, Vibraphone, Xylophone, Xylophone.

Percussion

4 sounds

Agogo, Melodic Tom, Timpani, Woodblock.

World instruments

13 sounds

Accordion, Bagpipe, Dulcimer, Fiddle, Kalimba, Koto, Shakuhachi, Shamisen, Shanai, Sitar, Steel Drums, Taiko Drum, Tango Accordion.

Voices

2 sounds

Choir Aahs, Voice Oohs.

Effects & textures

20 sounds

Applause, Banjo, Bird Tweet, Breath Noise, FX 1 Rain, FX 2 Soundtrack, FX 3 Crystal, FX 4 Atmosphere, FX 5 Brightness, FX 6 Goblins, FX 7 Echoes, FX 8 Scifi, Guitar Fret Noise, Gunshot, Helicopter, Orchestra Hit, Reverse Cymbal, Seashore, Telephone Ring, Tremolo Strings.

The exact total is counted from the current in-app catalog. Instrument names can repeat when two source libraries offer different recordings of the same instrument.

03

Open tools, credited sounds

The instrument shelf combines Yuzu Patch presets with open-source audio tools and openly licensed sample libraries. The sources stay visible so you can understand where the sounds came from.

  • Salamander Grand PianoAlexander Holm · Creative Commons Attribution 3.0
  • FluidR3 General MIDI SoundFontFrank Wen · Creative Commons Attribution 3.0
  • tonejs-instruments samplesNicholas Brosowsky and contributors · Creative Commons Attribution 3.0
  • Tone.js and smplrOpen-source browser audio tools used under the MIT License

See the original project links and complete attribution in the Yuzu Patch audio credits.

04

Online instrument questions

Do I need a MIDI keyboard?

No. You can play with QWERTY keys or the on-screen touch piano. A MIDI keyboard adds velocity, sustain, and a familiar playing surface.

Do I need to install anything?

No. Yuzu Patch runs in the browser. Open it, choose how you want to play, and start with the Grand Piano.

Is the instrument library free?

Yes. The browser experience is free. You can play as a guest, and a free sign-in unlocks instrument changes and saved preferences.

Can I use the sounds with reactive visuals?

Yes. Your selected instrument continues playing while you switch between Piano Roll, Galaxy, Lantern Hill, Neon, Ink, Light Cathedral, and the other visual worlds.

Which browsers support hardware MIDI?

Hardware Web MIDI works in desktop Chrome and Edge. QWERTY and touch input let you play without Web MIDI hardware.

05

Hear the idea now

Start with the Grand Piano, open the instrument shelf when you want a different character, and keep moving until the sound matches the idea in your head.

Play online instruments free
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