King of FM: DX Synth/E Piano icon

King of FM: DX Synth/E Pianov1.9

Released July 17, 2026Major

iOS

What changed

  • New featureAdded microtonality support with 150+ curated scales and Scala .scl file import.
  • New featureIntroduced 60+ international world scales with selectable root keys.
  • New featureAdded support for Western keys and scales including Major, Minor, and Pentatonic.
  • UXPresets now save their specific key and scale settings.
  • PlatformImplemented AUv3 state saving for tuning and scale settings.
  • UXAdded Tune Lock to maintain tuning settings while changing presets.
  • New featureAdded custom MIDI CC mapping for Program Changes.
  • PerformanceGeneral under-the-hood performance and stability improvements.

Original release notes

Thanks Everyone! FREE UPGRADE:
• NEW: MICROTONALITY
Explore new sonic territory with 150+ curated microtonal scales, including North Indian scales, Hexanies, and scales by Irv Wilson, Marcus Hobbs, and more.
• Import Scala .scl tuning files and bring your own custom scales into the app.

• NEW: WORLD SCALES
Explore 60+ international scales with selectable root keys. Choose from Arabic, Egyptian, Eastern, and other world scales, then pick the base key that fits your song.

• NEW: WESTERN KEY + SCALE SUPPORT
Choose a key like C minor, Bb, F minor, and more. Select from Major, Minor, Blues, Pentatonic, and other familiar scales.
Keep your arps, sequences, and external MIDI locked to a Western scale, world scale, or go fully microtonal.

• NEW: PRESETS SAVE THEIR KEY AND SCALE
Want Preset #17 to always load in D minor? Now it will. Save presets with the correct key and scale for songs, live sets, and performance patches.
• NEW: AUv3 STATE SAVING FOR TUNING AND SCALE
Your tuning and scale settings are now saved properly inside AUv3 sessions.
• NEW: TUNE LOCK
Tune Lock button starts unlocked, so presets can load with their saved tuning. Tap the lock icon to keep the same tuning while changing presets.

• NEW: PROGRAM CHANGE MIDI MAPPING
You can now use a custom MIDI CC to change presets. Go to the About Page [i], tap “MIDI Mapping,” then “Add/Edit Mapping.” Choose “Program Change,” then enter the CC you want to use.

PLUS: More improvements under the hood. This is a big leap forward
Thanks for supporting the app,
Analog Matthew

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