🤖 Now available on Google Play

Your phone + your keyboard =
a professional arranger

Connect your MIDI keyboard to your Android and play with full band accompaniment — drums, bass, guitars and more — following your chords in real time. Cumbia, grupero, norteño, salsa… made for the Latin popular musician.

Download free on Google Play See FREE vs PRO plans

<15 msof latency
34chord types
100%offline on stage

Live: MIDI keyboard → Neto's Arranger on the phone

A new arranger costs more than a motorcycle

Meanwhile, the band's keyboardist has to sound like a full band while playing alone. The solution wasn't another generic app: it was a real arranger, on the phone already in your pocket.

Keyboard workstation $1,200 – 7,000 USD Yamaha PSR / Genos, Korg Pa…

With Neto's Arranger ~$130 USD in gear An entry-level MIDI controller + the phone you already own. Get it free on Google Play: FREE at no cost · PRO $15 USD one-time, inside the app

Everything you need for the gig

Designed for the stage, not for a record label's rehearsal room.

Styles that follow your chords

Intro, Main A–D, Fills, Break and Ending synced to the beat. Play a chord with your left hand and the whole band follows you — like a Genos, but on your Android.

Live chord recognition

34 Yamaha-style chord types in 4 modes: Single Finger, Fingered, Full Keyboard. Zero setup: plug in and play.

Built-in Style Creator

Edit or create your own rhythms on the phone: piano roll, swing quantizer, layer recording and MIDI import. Your styles, your rules. (PRO)

Import your Yamaha styles

Years of collected .sty files? Import them as-is with the 3-step wizard and keep using your material. (2 in FREE, unlimited in PRO)

LIVE mode for the stage

Screen optimized for playing at night: 16 favorite sounds one touch away, Upper 1 and 2 always visible, tempo at hand. No searching mid-song.

MIDI Learn

Map your keyboard's knobs, sliders and pads to anything: volume, BPM, fills, section changes. Run the app without taking your hands off the keys.

+ SF2/SF3 SoundFonts, 2 Upper voices with DUAL/SPLIT, 4-slot OTS, USB-MIDI and Bluetooth, configurable audio output, true dark mode.

Sound like a full band in 3 steps

1
Connect your keyboard

Via USB or Bluetooth MIDI. Any class-compliant controller works — no specific brands or drivers required.
2
Pick a style

Cumbia, norteño, ballad, charanga… Preview it with a C chord before deciding.
3
Play

Chords with your left hand, melody with your right. Change sections and fills on the fly, synced to the beat.

Real live setup: MIDI keyboard connected by USB cable to an Android phone running Neto's Arranger — Real live setup: MIDI keyboard + Android phone, connected via USB

How it sounds — and how it looks

Real videos of the app in use and screenshots of every screen.

🎬 Live: MIDI keyboard → phone, styles following the chords

🎹 Built-in sounds: GM bank included

🥁 Cumbia style in action

🥁 Another cumbia style — sections and fills on the fly

📺 More demos and app videos on our YouTube channel @NetosArranger

Neto's Arranger main screen — Main screen

Import SF2 SoundFonts — SF2 import *(PRO)*

Basic style editor — Style Creator — basic

Advanced editor with piano roll — Style Creator — piano roll

Keyboard and MIDI settings — Keyboard & MIDI settings

FREE to play. PRO to create without limits.

The FREE version sounds like the full band at the gig. PRO unlocks everything: unlimited playback, unrestricted styles, sequences and SoundFonts and the complete editor — a single payment made inside the app, no subscriptions.

Feature	FREE	PRO
Playing live: styles, fills, sections and chords	✅	✅
LIVE mode (16 favorites), OTS and mixer	✅	✅
USB/Bluetooth MIDI with MIDI Learn	✅	✅
Playback per session	1 minute *	✅ Unlimited
Import styles (.sty Yamaha / MIDI)	2 styles	✅ Unlimited
Import MIDI sequences (.mid)	3 songs	✅ Unlimited
Import your own SF2/SF3 SoundFonts	—	✅ Unlimited
Style Creator: save and export	Try only	✅ Full
Price	$0 forever	$15 USD one-time · purchased inside the app

* When the minute is up, just hit play again — as many times as you want. Perfect for trying before buying.

Download free on Google Play How do I unlock PRO?

Frequently asked questions

What keyboard do I need?

Any MIDI controller keyboard with USB or Bluetooth MIDI output (class-compliant). Works with common brands: M-Audio, Casio, Yamaha, Roland… 49, 61 or 88 keys — it doesn't matter.

What phone do I need?

An Android 9 or higher with ~150 MB free. It doesn't need to be high-end: it's been tested on mid-range phones playing full styles without dropouts.

Where do I download the app?

On Google Play, Android's official store: search for "Neto's Arranger" or go straight here. The download is free and updates arrive automatically.

How do I unlock the PRO version?

From within the app: tap any FREE-version limit and choose Buy. It's a one-time $15 USD payment processed by Google Play with your Google account — no keys, no emails. It's tied to your account: if you change phones or reinstall, tap Restore and it re-activates by itself.

I bought the app before it came to Play — do I pay again?

No. Reach out through our support channels with your proof of purchase and we'll send you a code to unlock PRO at no cost.

Does it work offline?

Yes, 100% offline. It downloads nothing during the show and needs no signal — everything runs locally on your phone. Stage with no Wi-Fi? No problem. (Only the download and the purchase need internet, obviously.)

Can I use my Yamaha styles (.sty)?

Yes. The importer reads Yamaha's SFF1 format with a 3-step wizard. The FREE version allows 2 trial imports; PRO is unlimited.

How fast does it respond to chords?

The audio engine is native (C++), with target latency under 15 ms — imperceptible live. Connecting a USB audio interface lowers it even further.

What are the FREE version limits?

1 minute of playback per session (you can hit play again as many times as you want), max 2 imported styles and 3 imported MIDI sequences, no importing your own SoundFonts, and no saving Style Creator edits. When you hit a limit, the app offers to unlock PRO.

How does the audio sound, through the phone?

You can go out through the phone's headphone jack or connect a USB audio interface. The sound comes from professional SoundFonts with a dedicated drum kit.

Sound like a full band
this very week

Download it free from Google Play and try it at your next gig.
When you want everything unlimited, PRO unlocks inside the app — one-time $15 USD.

Download free on Google Play

Free to try · One-time in-app payment · Restores with your Google account

Your phone + your keyboard =a professional arranger