Which Koshi Chime Should You Get? 4 Elements or Earth Symphony, and Which One
Koshi makes two lines of chime, and the first choice is which line. The original 4 Elements (Terra, Aqua, Aria, Ignis) have eight rods in a bamboo tube; the newer Earth Symphony (Mountain, Forest, River, Ocean) has twelve steel rods in a hardwood chamber. Koshi did not design the two lines to be played together, so pick one line and build within it. Within a line, the chimes share the same size and construction, and what you're choosing between is the scale each is tuned to. The recordings below are the chimes as they actually sound, so listen first and read second.
New to Koshi altogether — the maker, the name, how the chime is built? That's covered in our guide to Koshi chime meaning and uses. This page is only about choosing.
First: 4 Elements or Earth Symphony?
| 4 Elements | Earth Symphony | |
|---|---|---|
| Chimes | Terra, Aqua, Aria, Ignis | Mountain, Forest, River, Ocean |
| Rods | Eight, in a bamboo tube | Twelve steel rods (four repeat matching notes), in a hardwood chamber |
| Tuning reference | A=432 Hz | A=440 Hz |
| Sold as | Singly or a Set of 4 | Singly or a Set of 4 |
Koshi describes Earth Symphony's twelve-rod design as giving a broader, longer resonance than the 4 Elements. The tuning reference matters if you play other tuned instruments: Earth Symphony sits on A=440 Hz, the standard most instruments use, while the 4 Elements sit on A=432 Hz (our 432 Hz vs 440 Hz guide explains the difference). Beyond that, it comes down to the sound: play one recording from each line and start with the one you go back to. Because the lines weren't designed to be played together, buy a second chime from the same line as your first.
The 4 Elements at a glance
| Chime | Tuning | Character | Half steps |
|---|---|---|---|
| Terra (earth) | G C E F G C E G | Warm, even, resolves | One (E–F) |
| Aqua (water) | A D F G A D F A | Soft minor, flowing | None |
| Aria (air) | A C E A B C E B | Open, suspended | One (B–C) |
| Ignis (fire) | G B D G B D G A | Bright major | None |
Why half steps matter: a Koshi chime plays its rods in whatever order the striker meets them, so the scale is heard as a texture rather than a tune. Aqua and Ignis have no adjacent notes a half step apart, so every combination the striker finds agrees. Terra and Aria each carry one half step, which adds a moment of tension and color that resolves as the chime rings on. Neither is better — it's the main thing that separates the four voices, and it's audible in about ten seconds of each recording.
Terra (earth) — G C E F G C E G
Terra is built on the C major triad — C, E, G, all doubled — with a single F above the E. Because the tonic and fifth recur so often, the sound keeps settling back on itself; the E–F half step gives a brief lift each time the striker crosses it, then C and G reassert. The overall impression is warm and even. If you want one chime that sits comfortably behind anything else you play — bowls, a gong, voice — Terra is the safe first choice, and it's the one we'd hand to someone who wants a chime for a treatment room and doesn't want to think about it further.
Hear Terra on its product page →
Aqua (water) — A D F G A D F A
Aqua is a D minor chord — D, F, A — with G added, and no half steps anywhere in it. Minor tonality plus no adjacent notes means the rods can strike in any order and nothing catches: the phrases run into each other. It's the softest-edged of the four, and the one that reads as most "flowing" in plain description. Aqua is the other common first chime, and the usual pick when the room already has a lot of bright metallic sound in it (bowls, small bells) and you want the chime to sit under that rather than on top of it.
Hear Aqua on its product page →
Aria (air) — A C E A B C E B
Aria is an A minor triad — A, C, E — with a B on top, the ninth. That B is what makes Aria sound the way it does: the chime never quite lands on a resolved chord, so the melody stays open and hanging. The B–C half step is right at the top of the scale, where it's most exposed. Compared with Aqua (also minor) Aria is lighter and less settled; compared with Terra it's the difference between a chord that resolves and one that hovers. Practitioners tend to reach for Aria for openings and transitions rather than as a background instrument.
Hear Aria on its product page →
Ignis (fire) — G B D G B D G A
Ignis is G major — G, B, D, each doubled — with an A at the top, and like Aqua it has no half steps. Major tonality plus the open ninth makes it the brightest and most forward of the four; there is no minor color in it at all. If Terra is the chime you don't notice, Ignis is the one you do. It's the natural choice for closing a session or bringing a group up out of stillness, and the one to pick if you already own Terra or Aqua and want the most contrast for your second.
Hear Ignis on its product page →
Which element for a first chime
Terra or Aqua — they're the two we sell most, and for good reason. Terra if you want warm and neutral — it goes with everything and asks nothing of the room. Aqua if you want softer and minor. Between the two, listen to both recordings once and buy the one you replay; that instinct is more reliable than anything written here. Aria and Ignis are excellent chimes but they have more personality, which makes them better second chimes than first ones.
There is no quality difference between the four. Same workshop, same construction, same rods; only the tuning changes.
Which two elements pair well
All four elements are tuned to work together, so any pair is safe. What differs is how much contrast you get:
- Terra + Aria — the closest blend. C major and A minor share the notes C and E (relative keys), so the two chimes sound like one instrument with a wider range.
- Aqua + Ignis — on paper, the smoothest pair to hang together where a breeze plays both at once: neither chime has a half step on its own, and combined their notes still contain none, so by music theory the mix should never catch. Ears differ, so listen to both recordings back to back.
- Terra + Ignis or Aqua + Ignis — the most contrast: a warm or soft-minor voice against the brightest one. Good for a session that moves from settled to lifted.
- Terra + Aqua — the two most popular first chimes together: warm major beside soft minor, with only Terra's E–F half step between them. Hard to go wrong.
When the 4 Elements Set is the answer
Buy the 4 Elements Set of 4 when any of these is true:
- You play for groups. Four chimes let you move a room through settled (Terra), soft (Aqua), open (Aria) and bright (Ignis) without reaching for other instruments.
- You want to hang them where the air plays them. Two or four chimes together become a mobile that plays itself in shifting combinations — the recording below is all four at once.
- You already know you'll end up with all four. Most people who buy a second chime buy a third; the Set skips the two intermediate decisions.
Hear all four together on the Set of 4 page →
The Earth Symphony chimes
Earth Symphony has the same four-chime shape as the 4 Elements, with a different build and a different tuning reference. Each chime has twelve hand-tuned steel rods, four of them repeating matching notes, inside a chamber of a different hardwood. The sound descriptions below are Koshi's; the recordings are the reliable guide.
| Chime | Key | Chamber | Koshi's description |
|---|---|---|---|
| Mountain | E major | Walnut | Broad |
| Forest | F# minor | Oak | Deep and layered |
| River | G# minor | Cherry | Fluid and flowing |
| Ocean | B major | Maple | Broad, deep and open |
Two of the four are major (Mountain, Ocean) and two minor (Forest, River), so the same first question applies as with the elements: brighter or softer. Mountain, Forest, River and Ocean are names for four tunings, not properties of the sound.
Mountain — E major, walnut
Hear Mountain on its product page →
Forest — F# minor, oak
Hear Forest on its product page →
River — G# minor, cherry
Hear River on its product page →
Ocean — B major, maple
Hear Ocean on its product page →
Within Earth Symphony any combination works, so a pair or the Earth Symphony Set of 4 needs no checking. The recording below is all four together.
Questions
Can I play a 4 Elements chime and an Earth Symphony chime together?
Koshi did not design the two lines to be played together, and they're tuned to different references (A=432 Hz and A=440 Hz). For a matched pair or set, stay within one line.
Is one Koshi chime louder or bigger than the others?
Within a line, no: the chimes share the same size and construction (Earth Symphony varies only the wood of the chamber), and each is tuned to its own scale. Loudness depends on how hard the striker meets the rods, not on which chime it is.
Which Koshi chime is best for a sound bath?
Any of them works; the choice is about placement in the session. Among the elements, Terra and Aqua sit well as a background or transition voice; Aria suits an opening; Ignis suits a close or a lift. Practitioners who work with a full line use its Set of 4.
Can I mix chimes bought at different times?
Yes, within a line. Koshi is a standardized line — every Terra is tuned to the same notes as every other Terra — so a chime bought this year pairs with one bought years ago exactly as the Set does.
Do the names mean anything for the sound?
They're the maker's names for the scales. The differences you hear are the tunings; the recordings are the reliable guide.
Every Koshi chime here is recorded, and every recording is that model's true sound. When you've listened, the Koshi chimes collection has both lines and both Sets.