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A complete reproduction – and more - of the legendary M1 that defined an era
Mobile digital synthesizer for the iPad/iPhone

Since it went on sale in 1988 the legendary M1 music workstation rapidly achieved record-breaking sales, becoming a mainstay of the music scene from the late 1980s and beyond. The appearance of the M1 helped musicians deliver professional-quality songs using just a single piece of equipment.

The design goal of the M1 was to deliver sound that would satisfy professional needs in two areas: performance and music production. This goal became the new direction for the PCM synthesizers and desktop music sound modules that subsequently appeared, and has been carried on to the present day with KORG’s flagship model the KRONOS.

High-capacity sampling and the increase in computer speed have enormously improved overall sound quality from a computer, but generating sound that delivers a real sense of presence demands technology and ideas beyond those that merely improve sound quality. The common element of electronic instruments that have left their name in history is that they had a unique sound that was difficult if not impossible to replicate. Sounds such as the “M1 Piano” and “M1 Organ” are instantly recognizable and have appeared on countless hit records over many years, and yet these are sounds that could only be produced by the M1. And that’s what you can now have on your iPad/iPhone!

2015/5/27 UPDATE: Ranked #1 on the App Store on Top Paid Music category in more than 20 countries!
2015/12/15 UPDATE: Selected as "App Store Best of 2015" in Japan!


KORG iM1 for iPad - Artists Impression

KORG iM1 for iPad Demo & Review by Katsunori UJIIE [English Captions]

A faithful reproduction of the original M1 Sound

The PCM data provides the library of the original M1. For the hardware, we analyzed the circuit diagram of the original design, and completely replicated it in software down to the last detailed parameters. Engineers with an exhaustive knowledge of the M1 made careful adjustments in order to obtain the sound of the original instrument, something that cannot be obtained simply by sampling the original sounds. We’ve also designed the iM1 so that programs and combinations are entirely independent – a capability not possible on the original unit. iM1 gives you a powerful, flexible and professional environment for mobile music.

A continued evolution of the M1 sound

Not content with simply reproducing the original, iM1 provides further evolutionary developments. Synth parts now have the filter resonance that was requested at the time of the original unit, as well as VDA modulation. The effect parts, originally consisting of only two master effects, have been powered-up to 18 insert effects which include a compressor effect that’s ideal for balancing out the sound. The user interface has also been refreshed with additions such as a new “KAOSS pad” that allows intuitive performance via the iPad’s touchscreen. iM1 is the ultimate version of the KORG M1.

A gigantic sound library encompassing 3,300 sounds and 34 cards*

In addition to all 19 of the PCM ROM cards originally released for the M1, iM1 also covers the sounds of the M1EX which expanded the internal PCM of the M1, as well as the sounds of the KORG T-series synthesizers which appeared as an evolution of the M1. There’s also “BEST OF M1,” a selection of 100 great M1 programs. The new “Smart Sound Browser” takes advantage of the large screen size of the iPad, making it quick and convenient to find the desired type of instrument or tonal character from this gigantic library. 

*: The 3,300 sounds and 34 cards are the total number of expansion sound ROM cards available, including in-app purchases.

  • M1 Cards Pack

  • T1 Cards Pack

KAOSS pad lets anybody perform

iM1 features a “KAOSS pad” from the popular KAOSSILATOR, allowing you to perform intuitively just by touching or swiping the screen. By using the dual KAOSS pads to play chords or adjust the sound, even people who are not accustomed to keyboard instruments or knowledgeable about synthesizers can enjoy performing M1 sounds. There’s also a conventional keyboard screen (virtual keyboard), as well as the “smart keyboard” featured on KORG’s Gadget app, which lets you specify a scale setting appropriate for your song and play chords with a single finger.

Connect a MIDI keyboard and use as an external sound module

In addition to enjoying iM1 on its own, you can connect a MIDI keyboard* via a Lightning adaptor (sold separately) and play the iM1 as an external sound module. The original instrument required some space and effort to carry around, but now you can easily take along an even more powerful workstation sound module as part of your iPad-based compact and lightweight mobile system. “Bluetooth MIDI,” the latest iOS 8 technology, is also supported, allowing wireless connection to a Bluetooth-enabled controller.

*: KORG USB MIDI compatible devices that can be connected to an iPad (current as of May 2015): microKEY (25-key), nanoKEY2, taktile, TRITON taktile

Use with KORG Gadget and AUv3 for song production

KORG Gadget iM1 Gadget "Darwin"

iM1 can be used together with KORG Gadget, the music production DAW app that won the App Store Best App of 2014 award in Japan. If both apps are installed, you can use iM1 as a sound module within KORG Gadget, taking advantage of the program sounds you created in iM1 for use in your own song production. Since the iM1 sound module covers a wide range of genres, combining it with the highly distinctive Gadget collection lets you cover the full range of musical possibilities. iM1 also supports AUv3, so it can also be used as a sound module for Logic Pro and GarageBand. With a convenient and richly varied set of sounds, iM1 can be the foundation for either of these music production environments.

Interoperable with the KORG Collection

Sounds that you create in iM1 can be sent from your iPad via iTunes to a Mac/PC. If you have the KORG Collection - M1, you can use those sounds in a DAW such as Ableton Live, Logic Pro X, Cubase or Studio One. Data compatibility is maintained not only with the KORG Collection - M1 but also with the original M1; this means that you can transfer data in system exclusive format to or from your PC, thereby exchanging data with the actual M1 to share sounds between iM1, the KORG Collection - M1, and the original M1. If you have an original M1 as part of your collection, you can play those familiar sounds on iM1. It’s a dream come true!


  • “The KORG iM1 app offers thousands of sounds from the M1 & T Series libraries, with powerful resonant filters, dual KAOSS pads, and 18 insert FX! The KORG iM1 app is a legendary musical time machine, that brings the past into the future.”
    - Jack Hotop (KORG's Lead Sound Developer)

  • “The KORG M1's impact on the sound of pop music is pretty hard to overstate. It really was a 'before' and 'after' moment in sound design. And now that KORG has recreated the same magic for the iPad and you can slip it into your pocket and take anywhere - well that's just huge all over again!”
    - Robby Kilgore (Studio Musician /M1 Sound Design Team)

  • "It's amazing. It's got all the sounds, features and expansion cards! It's gonna blow you away, it is so much fun to play with. It'll go everywhere with you. If you're an M1 fan, you're gonna love it. Even if you're not, you're still going to love it!"
    - Doung Sisemore (Musical Director for Reba McEntir)

  • “It’s still relevant, that’s what’s so brilliant about it. It’s such a powerhouse of sound!”
    - Jem Godfrey (Award-winning Producer, Keyboardist, & Songwriter)

  • “I really love it! For me, it’s such a trip listening to the old sounds just the way they were in the M1.”
    - David Tench (The Voice UK Musical Director)

  • “While totally into playing around with M1, I often thought of several functions that would be really great to have. iM1 has all those functions I dreamed of. Furthermore, the sound is exactly the same as M1.”

    - KEN ISHII (DJ/Techno Artist)

  • ”Including M1 Piano the sound of M1 is the sound people of my generation would always yarn for. It has a unique quality of Hi-Fi, working effectively in the tracks.”

    - tofubeats (DJ Producer)


  • KORG Gadget for iPad

    The ultimate mobile synth collection on your iPad
    The all-in-one music production studio

  • KORG Legacy Collection

    Legendary KORG synthesizers
    The ultimate virtual instrument pack

  • microKEY-25

    Potable MIDI keyboard with excellent playing feel

  • nanoKEY2

    Combining a responsive and great-feeling “touch”
    A thin low-profile 25-key USB-MIDI keyboard

  • taktile-25

    MIDI controller that's full of features that will stimulate your creativity

  • KORG M01D

    KORG M1 for nintendo 3DS downloads helps you play and create your music at any place, and at any time, in a palm-size package!

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KORG iM1 for iPad is available on the App Store.


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