Monday 27 September 2021

Umbriel

More music. One of the most entertaining things I own is an Arturia BeatStep, a control surface / step sequencer / MIDI-CV converter. It's simplistic, with just sixteen steps, no ties, no velocity, no swing, and if you want more than sixteen steps you have to manually switch from one pattern to the next. But it's fun, and immediate.

But! Arturia also sells the BeatStep Pro, which is posher, and I was irresistibly drawn to it. It's the chap at the top here:

Arturia also sells the KeyStep and KeyStep Pro, which are similar, but with keys. I wanted pads.

I'll write about it at greater length later on, but the piece of music at the top of the post was recorded entirely with a mixture of BeatStep Pro and Logic, with the BSP generating the sequences and Logic layering them. The synthesiser noises were all created with a Behringer Model D MiniMoog clone, and the rest of it is a mixture of GForce's M-Tron and samples of a TR-808. The bubbly, wobbly bassline was created by feeding different gates into the Model D's filter and amplitude gate inputs.

On a musical level I was inspired by Brian Eno and David Byrne's My Life in the Bush of Ghosts. It sounds nothing like it! Except perhaps for the fact it has unsubtle drums over an ambient backdrop. I don't know why I was thinking of My Life in the Bush of Ghosts.

The BSP is essentially two BeatSteps in a single case, plus an additional drum sequencer. It has some good things. The sequences can be up to 64 steps long, not just 16. It has masses of analogue outputs, including a velocity CV port for the two sequencers. It also has a screen that shows you which notes are being played, whereas with the BeatStep Non-Pro you had to work it out by ear, or simply go with the flow. It was easy to work it out because I also have a Behringer RD-8 drum machine, which has a similar interface because Behringer cribs extensively from Arturia convergent evolution or something.

On the negative side the Pro doesn't have the Non-Pro's random step function - a baffling omission - and the sequencing method is fundamentally different. With the Non-Pro you create a pattern with the pads and assign notes to the pads with the knobs, which have an obvious visual mapping with the pads. It's easy. I like to make pretty patterns with the pads, e.g:


With the BSP pro however the pads are a one-octave keyboard, and the steps are actually set with the row of sixteen green buttons just above the pads. You can't draw pretty patterns with the pads any more because they don't change. The fundamental problem is that the knobs still set the note values, and they're divided into an 8x2 matrix, but the pads are a 1x16 row, so you have to remember that the third knob on the second row is step eleven, because there's no longer a visual mapping between the knobs and the pads. There are numbers next to the knobs, but they're tiny.

Tiny, tiny numbers. I would have preferred it if the pads set the steps and the row of buttons acted as a little keyboard, not the other way around.

Did that make any sense? It has a control strip that retriggers notes in a dubstep styl-ee and a probability function that's much less useless than it appears, because you can't assign it to anything. It just does its own thing. And it uses a full-size-USB-to-micro-mini-USB instead of the more common, and more solid-feeling, albeit not much more solid-feeling, breathe in, full-size-USB-to-mini-USB that the Non-Pro version uses.

Tiny, tiny numbers.

Wednesday 15 September 2021

MRE Menu 15: Mexican Style Chicken Stew


Skip-rope, Travis-style, Mr Belvedere, and today we're going to have a look at another MRE. Menu 15: Mexican Style Chicken Stew.


Chickens predate human beings by millions of years. When they first appeared they couldn't have known that people would one day breed them for food. Instead they prayed that whatever creatures ate chickens in the Paleogene period would leave them alone instead.


They got their wish! They outlived their original predators, only to fall prey to a new breed. Us. We. You and I. Humanity. But perhaps they're playing the long game. I'm digressing here. The text has fallen out of sync with the images. I'll have to post one of the pictures again. Let's have a look at the contents of the MRE:


Don't worry, I didn't have to upload that image again. That would have been a waste of electricity. All I did was create a second link to the original image. 

Menu 15 contains Mexican chicken stew, cheddar cheese pretzels - they are fantastic - a packet of mixed fruit, a pair of MRE crackers, some cheese spread with jalapenos, a First Strike chocolate bar, a chocolate drink, and a lemonade drink. Lots of chocolate.

The accessory packet has a moist towelette, iodized salt, crushed red pepper, indifferent and almost tasteless MRE gum, and some quote toilet paper unquote that might possibly be useful as a wound dressing - you could use it to seal off a chest wound - but is no use as toilet paper.


Let's try the drinks first. I've had MRE lemonade before. It's awful, it tastes like mouthwash:



I drank it as quickly as possible. I've said it before, but MRE lemonade is probably formulated to mask the taste of water purification tablets. In that respect it's a success, but it's not much fun to drink. Let's try the chocolate hazelnut beverage:



I've had several MRE chocolate drinks before. They're odd - the instructions specify cold water, but they're essentially hot chocolate and only mix properly if you use hot water. This time I used warm water and it still didn't mix, but it tasted nicer. I don't know why they put cocoa in a military meal. MREs aren't supposed to put soldiers to sleep, they're supposed to keep them alive in the absence of alternative food.

At this point I put the main meal in the flameless ration heater, along with the mixed fruit. It wasn't until I played The Long Dark that I realised you were supposed to heat up mixed fruit. Until then I had always eaten mixed fruit cold.




Some MREs come with coffee creamer, and I wonder if it goes well with the mixed fruit. You could mix it in with the syrup. While the meal is cooking, let's try the crackers and the cheese spread:



MRE food exists on the same level as Sunday morning hangover food, e.g. it's crap, but tasty. The cheese spread bears very little resemblance to cheese, but if you put it on the crackers the result is wonderful. It's not good for you, it's not healthy, it would horrify a professional chef, but it's tasty.

Let's try out the cheese pretzels.



On the subject of tasty crap, the pretzels were excellent. They're crunchy biscuit things with cheese sauce in the middle:


They are the best crunchy MRE snack I have tasted to date, much better than the trail mix and the mixed nuts, even better than the baked snack crackers. They are apparently sold on the civilian market in the United States as Combos. Sadly I've never seen them here in the UK.

By now the main meal has heated up. Let's see what it's like:




It's nice, but anonymous. A lot of the MRE main courses I have tasted are very similar - chicken in an anonymous stew with bits of vegetable. The mixed peppers were a mistake and just made the meal unpleasantly tart. Nothing about the flavour of the chicken suggested Mexican cuisine. It's a pleasant but anonymous meaty stew that might go well on a tortilla, if you have one. It would also be good dumped on a plate of chips, but the same is true of lots of things.

Let's finish it off with the First Strike bar, which has military-style packaging and is, again, also available on the civilian market:



It's essentially a chewy, flexible block of sugar with chocolate flavouring and bits of cereal. It's like a parody of a "health bar". It's okay, but too sugary for my taste. It has fewer calories (282) than I expected but is probably bad for you in many different ways.

Almost forgot the fruit. Let's try out the fruit. It's paltry:


I've tried MRE fruit before. You get a small amount of fruit with some juice. It's just mixed fruit; no better or worse than mixed fruit from a can, but there's less of it. I wonder if you could combine it with the chocolate drink. Apparently US service personnel have super-secret MRE recipes, because there are only two dozen MRE menus and they get monotonous. Top Youtube chap Steve1989 has talked about "army mochaccino", which is a mixture of cocoa and coffee powder, but there must be more.

That's enough about Menu 15. It's one of the most consistently decent MREs I have tried. None of the individual elements are bad (except for the lemonade) and the cheese pretzels are excellent. The only downside is an overabundance of chocolate and a paltry main meal. If only the First Strike bar had been strawberry, and the chocolate drink had been banana milkshake or something, there would have been more variation.

Wednesday 1 September 2021

Doepfer LC1: Miniature Modular

Clowns to the left of me, jokers to the right, and earlier in the year I built a modular synthesiser. Why? Because, girl, you'll be a woman soon. It was as big as four rooms.

Four rooms. Look, I'm not going to do this any more. I was going to fill this post with references to Quentin Tarantino films from the 1990s but I'm not going to do that. Let's move on. Here's what my modular synth looked like, the last time I photographed it:


It's not a true romance, because the bottom half is mostly a Behringer Model D; only the top half is made out of modules. It's built into a Doepfer LC6 case, which is 84hp wide and two layers tall. The whole system is about the size of a slightly smaller-than-usual PC case, but not as heavy.

I've made a lot of music with it, viz:


There's a stereotype that Eurorack is addictive. The individual modules aren't that expensive, but they're desirable and the cost mounts up. £70 here. £120 here. £60 there. You have to give up smoking and drinking in order to afford more modules. Then you start cycling to work instead of driving. You cancel your gym club membership and sell off the Peloton. Before long you're a shell, a shattered ruin.

Would my music benefit from a ribbon controller? An FM radio? A low frequency oscillator that takes two hours to complete a cycle? Probably not, but how will I know unless I try? And by "try" I mean "spend money".

They're so beautiful.

But let's imagine that you're disciplined, and you want to build a little modular synth without spending too much or taking up too much space. Doepfer's smallest case is 32hp wide, which is either a challenge or too limiting depending on your outlook, but the company makes a slightly-less-miniature model, the 48hp Doepfer LC1:

It has twelve power connectors, which is nice but overkill. 48hp is enough for five or six regular-sized modules. A company called 2HP specialises in 2hp-sized modules, so if you buy lots of 2HP modules you might run out of power connectors, but you'd have to try really hard. Perhaps you could fill the empty space with passive low pass gates and attenuators. I'm digressing.

How did I fill my LC1? At first I did this:


Doepfer warns that the LC1's power supply is less stable than the power supplies in larger cases, which can cause analogue oscillators to go out of tune. Digital oscillators shouldn't be affected, so initially I built my system around Mutable Instruments Plaits.

From left to right the case has Plaits, a Doepfer A-101-2 filter, a Doepfer A-118 noise generator, a Doepfer A148 dual sample-and-hold, and a Behringer 140 dual-envelope-plus-LFO. It would be nice to have more LFOs, but I felt that the S&H circuit would compensate for that. The following tune uses this setup:


It also features a Meris Hedra pitch-shifting delay pedal, and Valhalla's Supermassive reverb VST.


The Hedra is great fun. I'll write about it at some point. It has three delay lines, which can either echo the sound as-is, or they can shift the pitch. It works best with monophonic sources, and preferably simple waveforms, and sometimes it goes wrong, but when it works it's like having someone play chords along with your music. About the only technical issue is an odd crackling at very high frequencies, which means that if I feed it into a reverb I have to roll off the top end otherwise the reverb result sounds crunchy. Enough of the Hedra.

How much did this modular marvel cost? Brand-new the LC1 is around £140, Plaits is £195, the A-101-2 £95, the A118 £60, the A148 £60, and the 140 £75, which is a total of £625. Ouch. That's not cheap. And you still need a bunch of cables, and a way to control it all. I used an Arturia Beatstep (£75), which doubles as a MIDI-CV interface, with an odd quirk whereby everything is transposed up two octaves. I also have Mutable Instruments' Yarns, an excellent MIDI-CV interface, but at 12hp it would take up as much space as Plaits.

But! with the exception of the Behringer 140 I slowly accumulated all of these modules on the second-hand market, from eBay, so I paid around £450, which is still not cheap, but there is an even more valueful option. Consider the following:


This is built around a Behringer 112 dual VCO, which is a pair of analogue oscillators. Despite Doepfer's warnings about instability the 112 worked fine and remained stable, although tuning it was difficult because the tuning knobs are very sensitive.

The setup above has the LC1, a multiple (£20), the 101-2 filter, plus the Behringer 112 and 140 modules. The Behringer 112 costs around £80 brand-new, so the whole setup would have been £410, but as mentioned I bought most of it second-hand and thus got it under £400. The end result is sonically in the same ballpark as a Roland SH-101, with a second oscillator instead of a sub-oscillator. It would benefit from a noise source and an attenuator, which I could perhaps have fitted into the case if the envelopes and LFO were smaller.

Here's what it sounds like, fed into Logic, this time with a Strymon El Capistan tape delay pedal:



That tune begins with the two oscillators playing the same notes, an octave apart, and then after a short while I play a different set of notes through the second oscillator. It all goes into the same filter, modulated with the same envelope, so although there are two notes at once the result is paraphonic rather than polyphonic. One thing to note is that the system doesn't have a VCA. I use the filter instead.

Oh yes, this setup has a Doepfer A-103 VCF6, which is modelled on the filter in a Roland TB303. At higher resonance values the A-102 shrieks loudly and outputs a sine wave. The A-103 on the other hand just gets more squelchy.

In this setup I'm using it as an expansion for a Behringer Model D, passing the two extra oscillators through the Model D's filter and envelopes, and passing the output through the LC1's spring reverb.

Could I have pared things down even more? I could have eliminated the S&H module, saving £60 at the cost of some flexibility. Behringer's System 100 range also includes the 110, which sells for £80 and has a single VCO, a VCA, and a VCF. A setup that consisted of a Behringer 110, 112, and 140 would fill the case for £380. Alternatively I could have eliminated the filter and used my TAKAAB 2LPG, but this module doesn't have resonance, so the results wouldn't be squelchy.

Is a 48hp case practical? On the positive side the system above is small enough to fit into a backpack and has roughly the same sonic power and flexibility as a Roland SH-101 or a MiniMoog, at a price of around £400. It's not quite a Korg MS-20 but if the modules were jiggled around it would come close. It would also be a good housing if you have a computer-based, virtual-instrument setup but wanted to try out 2HP's Pluck or Mutable Instruments' Plaits or something analogue.


This minimal setup uses a pair of Volcas and an Arturia Beatstep to generate sync pulses, and Dexed - a VST simulation of a Yamaha DX7 - being played with an Arturia Beatstep. The only two modules that are actually doing anything are the dual logic gates and the 2LPG.

48hp is however very limiting for a complete self-contained instrument. I still had to do a bit of jiggery-pokery with TipTop stackable cables on the dual VCOs because there wasn't room for any multiples. Doepfer's 84hp LC3 case is a much better option for that. 48hp does however make a lot of sense as a break-out box for passive modules, or modules that you rarely use, e.g. the dual logic gates in the video just above.