Ok, I just thought of a feature that might actually be doable. Since it’s going to have two LFOs, one (or both) could have LFO Rate as a modulation destination. All kinds of wacky fun could be cooked up with this.
This only fulfills some of your requests but…
Both Arp and Step already can modulate the Pitch and Filter Cutoff.
The Arp is automatically connected to Pitch, and Arp might be able to be sent to Filter Cutoff via the Filter’s Key Tracking knob.
And MOD 1 & 2 (which have Step) both have dedicated depth knobs for Pitch and Filter Cutoff.
Maybe “VCA” could be one of the “PGM” destinations for MOD 1&2.
Maybe “Arp/Kybd” could be one of the “PGM” Sources for MOD 1 & 2.
I hear ya. But the main reason for my request is to assign the arp or step to the filter alone for example. To play an independent melody with precise looped stepped filter tweaks. Or send to VCA only for interesting volume looping shapes. Either without affecting pitch. Or just to send it to VCO 2 only so that you could do some crazy stepped sync or FM effects, mixed with a stable key melody from VCO 1… Droolz
IIRC, I saw that was possible in the 22 minutes demo…
It would also be rad if one of the LFOs was independent of the mod wheel, or could at least be optionally decoupled from it.
Hello everybody!!!,
This is my first post! 
What I’d like to see in my new SUB37 is “custom CV connections”.
I mean that the Cv connections are patchable via software so that I can decide what the 3 Cv and the gate connections do.
For example in my first preset connection 1 is VCO2 out, connection 2 is Filter CV in, connection 3 is Envelope 1 out and connection 4 is arpeggiator gate out.
And I can change the patch as I want.
or better instead of the the four connections that are already there I would like a d-sub connector with a little break out panel with 8 jacks (as above I can decide what the jacks do via software) and that maybe could save some space for a midi through connector. 
HUGE +1. It seems like many of us will be upgrading from the Sub Phatty to the Sub 37, so I hope this is possible somehow. I’ve spent a lot of time fine-tuning the presets I used on my SP for my band and it would be nice to be able to just transfer them over. It seems like the Sub 37 has every feature that the SP does (in addition to a whole lot more), so it appears like this would be possible.
Also, do we know if it will be possible to set LFO time by BPM? I use my synths to play subby bass lines for my band and we often add LFO that’s timed with the tempo of the song. It would be great to be able to set LFO to X BPM and be done with it.
The Little Phatty and Sub Phatty do it, don’t they? At least they have MIDI sync’able LFOs.
Hi alpcohen,
If you look at the MOD 1 and MOD 2 panel of the SUB 37, you will see a “SYNC” button on each.
This will allow the LFOs to track various divisions of the MIDI Clock.
How do you change the Divisions of the MIDI Clock?
Look at the base of each LFO Rate and you’ll see that there are Sync Division hashmarks that, presumably, will have the same divisions found in other current Moog products.
I believe that the loopable VCF and VCA Envelopes will also be able to be Sync’d to MIDI Clock, and of course, so will the Arpeggiator. That’s a lotta’ clock!
{EDIT} Although you can’t see it in this picture, the Arpeggiator also has a SYNC button as well as both BPM and SYNC markings on the RATE dial. Given that there’s an LCD display, it’s likely that you will be able to dial in BPM with one decimal place for 10ths of a BPM like you can in the Little Phatty. {/EDIT}
Hope this helps,
I don’t think i am alone in wanting a tap-tempo button right on the front panel.
You’re not indeed
There is a trick on the Little Phatty; I guess the Sub37 will have it too.
It’d be nice if the digital stuff wouldn’t bleed noise into the analogue path, like, at all.
Do you think we’ll be able to set a mode where we can switch to a MIDI powered duophony?
In other words… do you think i’ll be able to hit a button or two and start playing my Taurus 3 with the Sub 37 keys in place of the 2nd VCO with my left hand and keep playing a dual osc Sub37 lead/melody with my right?
I’m pretty sure i’ve heard of similar things being done with the Voyager etc? But i’m not sure as the T3 is all I have right now..
That is not duophony. I guess you’re talking about having one synth with high note priority and the other one with low note priority, which is why the Voyager or other synths can already achieve it.
No, not it’s not.. I guess I meant it in the context of going through the same motions to switch to duo mode though which is why I said it.. my bad, I shouldn’t be mis-using these terms when what to call the thing was so hotly contested by some people in the first place. 
So it’s just High and Low note priority ay?
So, presumably, you just have the other synth set to broadcast MIDI on “X” channel and make “Channel X” the input channel for your “slave” synth… If your high/master synth is already playing a note it would just ignore any others according to how it’s setup just like my T3 that makes sense.. but in that case, how do you stop both synths being triggered if you just hit one note on your “master synth”?
While we’re on the subject… being able to sequence the T3 (or any synth for that matter) with the S37’s 16 “xox style” buttons would be quite cool.. especially if they implement swing on the S37.. (if they do i’m really hoping this is something they can put in the advanced preset settings of the T3’s arp.. and I believe the LP has an arp also that would benefit from swing i’m sure).. I’m sure it’d probably be possible already just setting the synth to local control only in case of the arp.. but a more thorough implementation would be a nice touch.. to be able to sequence a bassline on another synth while tweaking a latched open envelope or maybe even tweaking and transposing a latched arp sequence on the S37 would be great… but maybe getting outside the scope of the product I dunno..
I think for a mono it’s good to have high/low note priority but the 37 being able to play two notes should have low/mid/high priority. Being able to select which of those to send out should be available in the menu. For example I want the low note to trigger my Minitaur while the mid and high or just the high note triggers the 37.
Hello, my first post!
My request is simple. Ability to save the sequencer patterns is some way, preferably with the patch memory. Thank you for making the Sub37!
A third note paraphony to compete a bit against the dominion 1 
Glide amount as mod destination