Observed arrival · 2026-08-26

AMG Scale Controller, a Phone-Sized Quarter-Tone Instrument

amgscale.com Observed source

Editorial interest 79/100 Selection signal · not a rating of the site

An Android and iOS controller for quarter-tone, maqam, and microtonal tuning on selected Korg and Yamaha keyboards.

Landing page captured for the 2026-08-26 issue.

Field notes

The controller uses a phone or tablet as both a microtonal tuning surface and a pitch-bend Ribbon, sending gestures to supported keyboards through USB-OTG. The page lists six instrument families, including Korg KRONOS, NAUTILUS, PA, and M3 alongside Yamaha Montage, MOXF, and XG. It specifies Android 8.0+ or iOS 17+, with Android delivered as a signed APK and iOS through TestFlight. The displayed offer is a $59 one-device licence.

Observed signals

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Editorial observations of this landing page, not a rating.

⊠LoginAccess appeared gated

$PaidCommerce or pricing visible

✦PrettyNotable craft visible

●ProPolished or operationally mature

◎NicheUnusually specific use

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