1975 ARP 2600 model Vintage Analog Synthesizer w/ 3604-P Keyboard SN 361107

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Per-step Pitch Intervals with a Sequencer using PRECISION VOLTAGES module for Eurorack

video upload by AJH Synth Official

"Using a step sequencer to change VCO pitch per step: The Precision Voltages is a convenient way to offset VCO frequencies musically, by pitch increments of semitones and octaves, which can be either added to, or subtracted from an incoming CV signal, such as a sequencer or keyboard controller. This can have many uses, not just for melodic control of oscillators, but here is a particularly useful function for pattern-based pitch sequencing.
Modules connected to the outputs of the Precision Voltages will be sent fixed voltages of preset musical intervals, based on the 1V/Oct scale. These voltages, here represented as precise intervals of semitones and octaves, are selected by the two rotary switches. With no external CV signal connected to the inputs, the module will function as a source of preset fixed voltages, with a huge range of +11 volts to -11 volts (10 octaves + 12 semitones). These can be conveniently switched on or off with the A & B switches. When an incoming CV signal is present, this voltage sources is added to, or subtracted from the signal, meaning it can be used to easily shift the pitch, frequency, or CV level of modules it is connected to. This is ideal for shifting the pitch of VCO's to create harmonies or simple chords, or for offsetting CV levels in any application that uses them.
The Gate input of this module affects the value of A only, and will allow it to be turned on with a high gate signal, or off when the gate is low. B will remain unaffected, and will continue to output the pitch/voltage offset selected by the rotary pots and switches. The 'OUT' output will combine both A and B, depending on the switch position next to it. As a result, when A is turned off, either by the switch or a gate signal, then only the value of B will be output here.
Official website page: https://ajhsynth.com/Precision.html

I'm also using the new Chance Delay module on this patch for some generative randomness/probability - it's not necessary, the sequencer can be connected directly to the Precision Voltages Gate input.

SEQUENCER ADVICE: Most sequencers will allow you to change gate length, sometimes referred to as 'duty', as is done in this video, but you'll need to consult your sequencer's documentation if you are not familiar with how to do this. On many it is obvious, but others not so much. Also, some will allow you to change the gate length directly and quite precisely, whilst others will only allow you to change it in fractions or percentages. This may mean that you can't quite get the gate to span the entire step length, meaning that the pitch modification made by the Precision Voltages may be heard ending prematurely. This is the behaviour of the sequencer, not the module. However, there is a way around this...
A gate signal is just a voltage of either zero volts (off/gate is low), or a minimum of +5 volts (on/gate is high). Gates are pulse (square) waves for this reason, as they are simply one of these two states, and so some sequencers will also refer to gate length as 'pulse width'.
However, all the gate input needs is one of these two voltage values to turn it on or off. This means the CV outputs of a sequencer can also be used, so long as your sequencer has a range of at least zero to +5 volts, which they almost certainly will. Therefore if you connect the CV output of the sequencer to the Gate input of the precision voltages, set all of the step pitches (or pots such as on the SQ1 used here) to zero, when you run the sequencer the pitch changes set by the Precision Voltages will not be activated. If you then raise the pitch of a step to maximum, it will activate the pitch change on that step. Problem solved!
This is not as immediate or convenient as being able to switch the changes on or off with buttons, but it works just the same otherwise, and may be helpful if you can't get satisfactory results with your sequencer, or are finding it too difficult to adjust the gate lengths accurately.

The AJH SYNTH Eurorack range consists of high-end modules, all hand-made in the UK, most of which are based on classic, vintage designs, authentically recreating the circuitry of much sought-after analogue instruments and technologies of the past, whilst greatly expanding them, and bringing them to modern Eurorack levels of convenience, limitless flexibility, and reliability.

Check out the AJH Synth playlists for module 'User Guides', and 'Patch of The Week' videos, which will be either performances or 'how to' guides, detailing functions/methods, and a range of sounds, some familiar, some less so, containing a patch sheet at the end to show you how to construct it for yourself.

Video by @DreamsOfWires"

THE DIGISOUND 80 MODULAR SYNTHESIZER - SYNTHESIZER SUINDAYS

video upload by THIS MUSEUM IS (NOT) OBSOLETE

"The First Synthesizer Sundays with @LOOKMUMNOCOMPUTER
museum upen on December 22nd 5pm-8pm the organ will be playing crimbo tunes. ALSO OPEN 1-4 DECEMBER 29th And 30th. See more stuff and Support the museum here :-
https://www.patreon.com/lookmumnocomp..."

Suzuki PK-37 experimental demo

video upload by NOYSTOISE

"A little improvising on my heavily modified Suzuki keyboard. More details at my blog
www.noystoise.com"

Prismatic Spray bytebeat synth - looping tutorial

video upload by Arman Bohn

"Let's talk about some features of the Prismatic Spray bytebeat synth including playing notes via a MIDI source, MIDI equation reset, and looping bytebeats."

MIR - Novation PEAK DEMO SONG

video upload by Lightune

Music starts right after the :35 second mark.

"Ďalší zvukový modul na testovanie a zloženie demo skladby."

"Another sound module for testing and composing a demo song."

SoundFreak Env Shaper Study

video upload by Todd Barton

"Learning more about the Soundfreak EMS Buchla format Envelope Shaper in conjunction with the Buchla Dodeca module."

Patreon: https://www.patreon.com/synthtodd

Dreadbox Nymphes first jam

video upload by tsrono

"using the Squarp Hapax to sequence the Dreadbox Nymphes through an Alesis Quadraverb (flanged echo patch). just a quick rough jam from the first ~30 minutes of playing with the synth, brand new to me."

Make Noise XPO Drone

video upload by Akihiko Matsumoto

"Make Noise Modular Synth Sample Pack: https://akihikomatsumoto.bandcamp.com..."

12/1/23 Roland (& RYK & E-licktronic) System 100m + Tapco 4400 + CXM 1978

video upload by Cfpp0

"The sequence and drum pattern are lined up differently in this take, with more emphasis on the upbeat. The E-licktronic 118a snare goes to the Roland 150 and gets a ring mod with one of the 112 oscillator outs, then that snare joins the kick in the 121 filter. The 112 oscillators are going to the other half of the 121, to the 172 phase shifter, to the 130 vca, enveloped by the 140. But the 112 oscillators also go to the 172 gate delay (thanks Alex Ball for the tip) for an extra sub oscillator layer, which goes back to the 112, but it’s not much of a feedback loop. CV from the RYK 185 and several LFOs modulate."