Professor Synth Demo and Tutorial for iPad, A Prophet V Sim

August 7, 2014 · Posted in Uncategorized · Comment 

One more demo of the recently released Prophet V for iPad

Professor is a Prophet 5 Sim from Alex Smith, the dev who brought us Grit, Interpol, Evil Machine and others.

Professor demo for iPad app – Poly Synth inspired by Sequential Sircuits’ Prophet 5

August 6, 2014 · Posted in Uncategorized · Comment 

Professor is a virtual analog polyphonic virtual analog synth inspired by the legendary sequential circuits prophetV!

The waveforms have been carefully shaped to sound a close as possible to the original resulting in a lovely polysynth


Midi & Audiobus ready!

Get it here >>

Yazoo – ONLY YOU – Re-created w/ Sequential Circuits Pro-One Synth

July 21, 2014 · Posted in Uncategorized · Comment 

Yazoo’s Only You, recreated on the Sequential Circuits Pro One synthesizer., details below:

Some friends needed the backing track of this song for their wedding, so I took the opportunity to geek out with it. The original is well-known by synth nerds as having been produced by Vince Clarke using only a Sequential Circuits Pro-One monophonic analog synthesizer. So, since I have a Pro-One, and there are scans of an old music magazine article online which show the settings for some of the sounds Vince used on this track (…), I figured I’d have a go at re-creating it.

First I transcribed the music (sequenced with Cubase), using soft-synth sounds as temporary stand-ins for the Pro-One. Then I had to dial in all the Pro-One sounds one-by-one and record each part via a Kenton MIDI-CV interface. I found that all of the patches from the article needed adjusting to get them in the ballpark, plus I had to create the other sounds from scratch (I’ve credited each patch accordingly). Having done so, I’m not convinced that every single sound on the original is actually a Pro-One. The “Tinkle” sound, for instance, sounds more bell-like on the original, so it could possibly have been something like a PPG. I don’t think Vince had his Fairlight yet, otherwise I’d say it was that. Also, the string line toward the end of the song sounds like it might have been played on a polysynth, ie maybe the Jupiter 4 which Vince used alot at the time. Of course, there’s also the snare, which was an 808.

In any event, I think I got pretty close with my rendition. Of course the effects and mix are going to be different, and some of the sounds are closer than others, but whatever.

I had a limited amount of time to work on this, and am already hearing at least one minor omission and also some slight patch refinements I’d make, so if you want to give it a shot yourself, you can download the MIDI file and the patch sheets here (be sure to let me know if you make your own version, and give me a shout out if you post it online!):…

One tip: the cutoff of the “Wobble” sound varies a bit, getting slightly brighter during the chorus, etc. The only way to do this is manually while recording. I tried to use automation for this via the Pro-One’s filter CV input, but doing so cancels out the Keyboard Amount setting, which is crucial for this sound, so I simply adjusted the knob in real-time.

If you liked this re-creation, check out my other videos for four “Speak & Spell” tracks that I re-created using only a Yamaha CS01-II synth.

Thanks to for the blank patch sheets!

Listening in on the SCI Pro-One

June 21, 2014 · Posted in Uncategorized · Comment 

Vintage synthesizer demo track featuring the Pro-One

all sounds: SCI Pro-One Analog Synthesizer (1981)
drums: LinnDrum (1982)
recording: multi-track without Midi

The Sequential Pro One is a wicked little monosynth! It comes from the same period and genre as the Roland SH-101 and Moog Prodigy. The Pro One was basically Sequential’s attempt at taking their legendary Prophet 5 poly-synth and packing it into a compact, inexpensive, monophonic analog synth! It has two VCOs, a great 4-pole lowpass filter, two ADSR envelopes (one for filter), and a compact three-octave keyboard. With a Pro-One, you can easily create punchy analog bass-lines and leads or quirky analog synth effects.

The Pro One is an extremely flexible synth with lots of modulation possibilities (ie: the filter, VCO B and LFO can modulate VCO A or B frequencies or pulse widths, or the VCF). There’s also an onboard sequencer, something common on many Sequential synths but not often found on other monosynths of the time. It is very basic, however, storing only two patterns and up to 40 notes max. Also, only pitch info is recorded (and in step time only); you can not assign a note duration to any notes. So it’s basically a short melodic sketch-pad…but useful. Also onboard is an arpeggiator which has UP and UP/DOWN patterns.

Sequential Circuits Prophet VS

April 21, 2014 · Posted in Uncategorized · Comment 

The Sequential Circuits Prophet VS digital/analog hybrid synthesizer from 1986. This track is only using Prophet VS sounds.

Sequential Circuits Prophet VS “Wave 75″ Choir

March 24, 2014 · Posted in Uncategorized · Comment 

Vintage synthesizer demo track by RetroSound
“Wave 75″ is the famous VS choir.

all synth sounds: Sequential Circuits Prophet VS Vector Synthesizer (1986)
drums: Roland TR-808 (1982)
recording: multi-tracking without midi
fx: reverb and delay


March 9, 2014 · Posted in Uncategorized · Comment 

Youtube alias ‘AnalogAudio1′, takes a look at the vintage Sequential Circuits Six-Trak analog synthesizer, details below:

Synthesizer demo of the analog synthesizer SCI Six-Trak from 1984. It was the first multitimbral MIDI synth on the market (it came before Oberheim Xpander). The Six-Trak has that typical SCI and DSI hardware design – great, classic look with massive wooden end cheeks.

In this movie I play some of my own sounds – on some sounds I used a digital delay (Roland DEP-5) and reverb (Lexicon MPX-500). In the intro I used the sequencer of the Six-Trak.

The Six-Trak has 1 VCO per voice (6 voice polyphonic). It also has PWM, 3 ADSRs, 24 dB VCF, noise generator, LFO with different waveforms. It has a sort of “slimmed down polymodulation”: VCF modulation by VCO for dirty and metallic timbres. Unison mode for fat, monophonic sounds. Great “stack mode” allows layering of six different patches. The Six-Trak also has a little 6 track sequencer and an arpeggiator built in.

I like the Six-Trak very much. I would wish it had multiple outputs and a chorus effect.

Vintage demo: Sequential Circuits Prophet 5 Rev 3.3

December 15, 2013 · Posted in Uncategorized · Comment 

One of the first fully programmable polyphonic analog synths, the Prophet 5 is the most classic synthesizer of the eighties! It is capable of a delightful analog sound unique to Sequential’s Prophet series in which the P5 was King! Five voice polyphony – two oscillators per voice and a white noise generator. The analog filters, envelope and LFO all sound great and are extremely flexible. The P5 had patch memory storage as well, which scanned and memorized every knob setting for storing and recalling your sounds – a desperately needed feature at the time!


The P5 lacked MIDI (a feature that came later on the P5 spin-off, the Prophet 600). But it is still loved even today for its great string sounds, analog effects, and punchy analog basses. Unfortunately the P5 is not immune to the dark side of vintage synths – it has its fair share of analog synth problems such as unstable tuning, it’s difficult to repair, lacks MIDI, etc.

There are basically three versions of the Prophet 5:

Rev 1 P5s are pretty unreliable, if you find one; they’re also quite rare. These were all hand-assembled in the ‘garage stage’ of the company.

Rev 2 uses SSM chips, and has some differences in its control logic capabilities from the final version. It can’t be retrofitted for MIDI, but is considered by most to be the better-sounding of the two ‘common’ P5s.

Rev 3 is the final version, and subsequent Rev 3.1, Rev 3.2 and Rev 3.3 each are capable of taking a MIDI retrofit. They’re also capable of microtonal tuning. The audio quality of the Rev 3 is different, however, as it uses Curtis chips instead of Rev 2′s SSMs; many people think the Rev 3 units sound ‘thinner’. The Rev 3, however, is considered the most reliable of all of the different versions and they had 120 memory patches.

Background video description:

All sounds are coming from the Sequential Circuits Prophet 5 Rev 3.3 Synthesizer. You can also see the Rev 2 Prophet in the video but it will be another video…Composed and Played by Mr Firechild.


December 13, 2013 · Posted in Uncategorized · Comment 

Short Demo of the vintage analog synthesizer Sequential circuits Prophet 600.

The first commercially available synth to implement MIDI!! It’s a fun synth. Its big brother is the legendary Prophet 5. The P600 is very affordable today and is a great buy. Models with the newest software will enjoy polyphonic MIDI implementation and up to 100 memory patches to store their own sounds! The sound of the Prophet 600 is brighter and harsher than that of a Juno 106 but still just as funky.


The P600 has two oscillators per voice with sawtooth, triangle and variable pulse waveforms. The oscillators can be individually tuned or synced together. Similar quality VCF and VCA sections from the Prophet 5 can be found here too! The P5′s Poly-Mod section has also been passed onto the P600. The P600 is extremely versatile and easy to use! Its best functions include the onboard arpeggiator, 2-track sequencer and poly-modulation. The P600 is great for creating analog effects, swells and drones. It has a cool glide effect and has very flexible modulation possibilities!

Tune made with SCI Prophet VS & Pro-One

November 1, 2013 · Posted in Uncategorized · Comment 

Vintage synthesizer demo track featuring two classic synths

pad, fx and lead sounds: Sequential Circuits Prophet VS (1986)
bass: Sequential Circuits Pro-One (1981)
drums: Roland TR-707
recording: multi-tracking without midi
fx: reverb and delay

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