Everything begins on Sa.

R · Re — the editor

It reads the way you write.

The name is index, reversed — because indexing is the whole idea. Ecidni parses your document’s structure as you type: prose linted live, dead links caught before you publish, [[wiki-links]] completed across the vault, front matter type-checked like code. All of it offline. None of it waiting on a server.

G · Ga — byte fidelity

Your bytes come back untouched.

Round-tripping is the contract: 28 of 28 corpus files pass through Ecidni byte-identical. Change one word and the diff is one line — reviews stay readable, history stays honest, and your files are never rewritten behind your back.

$ git diff varnam.md
@@ -12 +12 @@
-the melody returns to Sa, and rests.
+the melody resolves to Sa, and rests.

M · Ma — the Carnatic vertical

A code fence that sings.

Write Carnatic notation as plain text inside a ```carnatic fence. Ecidni renders it onto the tala grid — Pallavi, Anupallavi and Charanam as sections, Adi tala counted at 8 aksharas.

Sw: S R G M | P D | N S+ ||

ஸ ரி க ம ப த நி — Sa Ri Ga Ma Pa Da Ni

P · Pa — the fifth, the drone’s partner

Press ▶ Play. Nothing leaves the room.

Every notation block carries a ▶ Play button that performs it with physically-modelled tanpura, mridangam and tabla — synthesis, not sampled recordings, computed locally.

It listens, too. Hum a phrase into your phone and Ecidni sketches a swara skeleton from the audio — capture the idea where it strikes, refine it at the desk. Point it at a folder and it transcribes the whole album; ask it and it names the raga of a recording.

And Pa holds the drone — so the practice room lives here too:

• Shruti boxthe tambura drone on any sruti — synthesized jvari, a bundled recording, or your own
• Voice tunerhold a swara against the drone and see exactly where your voice sits
• Sadhakam ear-trainera mystery swara over the drone; it drills your weak notes harder
• Varisai practicesarali, janta, alankara — generated by scale degree in any of 90 raga scales
• Kanakku workbenchtala arithmetic for mora and korvai — phrases that must land on sam, checked
• Konnakkol trainercall-and-response solkattu, Tisra through Sankeerna, with click playback
• Learn-along A–B playerloop a phrase, slow it down, follow the highlight until it’s yours
• Compare renditionstwo takes of the same line, side by side

Eight soft tones, just-intonation from Sa = C. This page uses plain oscillators — a sketch. The app’s instruments are physical models.

D · Dha — the Hindustani vertical

Bhatkhande, kept faithfully.

The ```hindustani fence follows Bhatkhande convention: komal swaras lowercase and underlined, tivra Ma marked, the taal strip counted × 2 0 3, and theka playback for the cycle.

Sw: N- R G M | D N D P | M G R G | N- R S , ||

सा रे ग म प ध नि — Sa Re Ga Ma Pa Dha Ni

N · Ni — the note that leads home

100% local. Not opt-out — absent.

No cloud. No accounts. No telemetry. There is nothing to switch off, because nothing was ever phoning home. Your practice notes, your compositions, your students’ exercises: files in a folder you own, on hardware you own, readable by any editor for the next fifty years.

Ni leans toward Sa; your data resolves to disk.

Ṡ · the octave — same Sa, arrived

Take the whole scale with you.

The editor is free software. The music verticals are one-time purchases — no subscription, no account, nothing that expires.

• Editor Apache-2.0Free
• Carnatic vertical$2.98
• Hindustani vertical$2.98
• Both verticals$4.98

One-time. Yours for good.

↑ return to Sa