From @Yebisu303
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I was curious about the type of battery used, so took a peek inside, it is in a little plastic box but looks to be fairly easily replaceable.
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I am so angry this battery isnāt in the existing Boutique range. And especially the TR-6S.
Wow, he got the J-6 working as a MIDI controller for Ableton in zero time.
The chords sound legit - not just chords that only work for songs in a major key.
I can see this happening in my near futureā¦ going to our fave local music shop to check out the new Oberheim, compare it head to head with the Prophet 5ā¦
ā¦and when the local keyboard snobs arenāt looking, Iām going to sneak over to the cashier with J-6 in hand and run on home
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Me: What kind of a scam is this Unison MIDI Chord Pack bullshit?! Seriously ought to be illegal.
Also me: Legit excited to have dropped $200 on a tiny box Iāll primarily use to sequence chords!!
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Me: I can probably take a Raspberry Pi, a USB MIDI interface and a USB tenkey, whip up some Python and have a better chord generator than anything on the market.
Me, next week: [calling Detroit Modular] āso Iām going to need all three of the new Rolands and what other sequencers and sequence generators do you recommend?ā
Raspberry Pis continue to gather dust
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Haha - well it is a very tidy and portable little package, good to use on its own, and handy as a little midi device. The build quality is pretty nice, feels a bit like a decent game pad, buttons feel pretty solid.
I think these are like a bit of a step up from Korg Volcas at least as far as things like pattern memories and USB - although they donāt have midi CCs as the Volcas do. It will be interesting to see what Korg do on any future Volcas.
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I gave up and put RetroPie on mine. At least I use it now 
This is certainly good to hear! Though if Iām honest I was all-in the moment I saw that silk screen of the staff with measures around each sequencer button and the š šs on either end. Too cute!
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Hello,
I purchase the T-8 and the J-6. Quite happy with both ! They sound great imho. For multi-pattern tracks, i use my MC-101 or my Model:Cycles to send program changes via MIDI, thus obtaining pattern chaining ability.
I would like to ask J-6 owners if they experience the same problems that i have Ć·
- I hear a little ājumpā when the J-6 switches between patterns, especially with the same āinstrumentā with the same exact sound parameters.
The test can be done with say a sustained chord in one pattern. I copy it in another pattern, and if I switch between the 2, the ājumpā is noticeable.
- I also hear noise when turning the sound volume knob at high level with the filter at minimum value.
These are more or less noticeable depending on the sound, melody and mix with other device.
Have you opened the black box? It would be interesting to know which type of cells are contained there.
Can anyone with a J-6 shed some light on this: how does it work in practice as a chord progression idea generation device? I see that it has a number of chord presets for different genres, but not sure how you combine them in practice. Does it lend itself to explorations of new chord combinations or does it invite you to simply follow the preset progressions?
Itās already clear that this device will enable melodic ideas for people previously unfamiliar with them. Meaning, weāll likely see a shift from blip blop techno to something more like melodic trance for certain people. 
But what Iām trying to figure out is, is this tool helpful also for those people who already know a thing or two about chord progressions but are just looking for new ideas? And will this thing last a long time in the sense that it can inspire 100s of new chord progressions, or will a user mostly just gravitate to that one favorite preset set, e.g. āPop 1ā?
You select a chord preset then play it on the keys, you can shift the keyboard, that is about it.
In the sequencer you can enter chords or single notes, or your own chord (upto 4 notes) and for each step you can set the style/variation, but not the chord genre.
Yeah probably lots of bad trance will be made now 
But, there is something very endearing about the J-6, it just has a simple charm about it.
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While I think these things are a jackpot for Roland I do feel the Novation Circuit beats the T-8.
The T-8 is smaller and the built in battery makes it easier, but overall isnāt the Circuit more bang for the buck?
Undoubtedly, as is the MC-101 - you can buy a used one for the price of 2 of the Aira mini units, and get a lot more functions than a T-8 and J-6.
However, these are one trick ponies, and are IMHO well designed to do just the thing they do, nothing more. There are a few quirks and omissions and just a couple of odd design decisions, maybe some of the omissions and quirks will be addressed in a firmware update.
I think if you like making acid the T-8 is a great little sketchpad, if not then probably very little to get excited about.
For a portable, handy chord generator the J-6 is pretty cool, the sequencer is very akin to the JX3p sequencer, it can be used for single notes as well as arps/chords, and can be set to different resolutions.
The E-4 is kind of an oddball, vocoder/autotune/harmoniser/looper but pretty fun for vocal stuff.
All sound excellent, and are pretty much all sweet spot devices.
Things I wish were different:
E-4 canāt affect line in, only mic in.
T-8 would have been better with more drum sound choices. Also the 303 knob layout is a bit dumb IMHO.
As of now none respond to midi CC.
No motion recording.
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Got it! That confirms itās like the chord progression feature on the MPC so it doesnāt really add anything new other than a few more chord progression sets.
Yeah it is pretty similar to mpc chord mode, and the pads are not velocity sensitive either.
One handy feature is class compliant audio and midi in and out, so for ios it is pretty useful on the go.
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Nice dub usage:
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I have tried and you can affect different chord per step but you have to activate the āvariationā button.
Really? How - when I tried it only records the variation type not the chord type, the chord always seems to be what it was last set to when I check what is on each step.