Roland Zenology Pro review

Roland Cloud’s central synth engine gets upgraded with pro-level features

  • $9.99+
Roland Zenology Pro
(Image: © Roland)

MusicRadar Verdict

Zenology Pro sounds good, and is great for use with Zen-Core hardware, but as a plugin it’s held back by a dated interface and workflow.


  • +

    Large library of quality PCM samples.

  • +

    Can send custom patches to Zen-Core hardware.

  • +

    Good keyboard split/layer capabilities.


  • -

    Interface looks and feels dated.

  • -

    Fixed modulation routings.

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What is it?

Earlier in the year, when we reviewed Roland’s Zenology application, we found it to be a handy source of classic sounds, albeit fairly simple in its form at the time, which was pretty much just a preset player.

On release, Roland promised big things to come, including new emulations of analogue hardware – which have rolled out since – and full pro-level ‘power synth’-style features. The latter element has now arrived, in the form of Zenology Pro. 

Essentially, Zenology Pro gives users access to the full toolset of Roland’s Zen-Core engine, which is the power behind Zenology and recent hardware including the MC-707 and Jupiter X

At root, the engine uses a system of Partials, four of which can be used for each sound, each making use of either PCM samples or virtual analogue waveforms. These Partials are arranged in pairs, with the options to engage sync, ring mod or cross mod between Partials 1 and 2 or 3 and 4.

Each oscillator section has five options: PCM, virtual analogue, PCM Sync – a choice of PCM waves that allow for oscillator sync between Partials – Supersaw and Noise. Each section has its own parameter settings and options, so users can choose between waveshapes and set source samples. Interestingly, PCM mode has a stereo function that lets individual samples be set for the left and right channels of each Partial.

Roland Zenology Pro

(Image credit: Roland)

Beyond this, each Partial has a multi-mode filter, two LFOs plus an envelope-controlled amp and an EQ.

These are mostly standard fare, but there are a few nice touches; the filters have multiple settings including several Roland hardware emulations (although no notch filters, sadly), and the LFOs have a step sequencer mode for rhythmic modulation.

Performance and verdict

More so than in its basic form though, Zenology Pro suffers from how dated its interface feels. Although it’s nice being able to jump easily between Partials and different synth elements using the structure view at the top of the UI, too many parameters are controlled primarily via fiddly sliders, and the less said about the spreadsheet-like Pro Edit window, the better (fortunately this latter element can be largely avoided).

Next to most modern softsynths, the modulation routing is fairly inflexible too. Filters, oscs and amps have their own envelopes, and LFOs can be applied to most logical places – again, via sliders – but there’s no cross-modulation of modulators and Zenology lacks the ‘click and drag’ freedom we’re used to when setting up modulation in modern plugins.

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Zenology Pro’s biggest selling point is its vast library of quality PCM samples, many sampled from classic Roland gear. It’s well-equipped for keyboard splits and layers too.

For Zen-Core hardware users Zenology Pro is a no-brainer, since it lets you create complex custom patches to then share with the hardware. As a standalone virtual synth, however, its UI feels a generation behind the competition.

MusicRadar verdict: Zenology Pro sounds good, and is great for use with Zen-Core hardware, but as a plugin it’s held back by a dated interface and workflow.

The web says

"Of course, Roland’s new offering isn’t the only option in its field but it’s one that’s backed by almost 50 years of synth-design and sound-design know-how – and this experience shows in the quality of the instrument’s sounds."

Hands-on demos

Synth Anatomy


Doctor Mix


  • TYPE: PCM and virtual analogue synthesiser
  • KEY FEATURES: Included in Roland Cloud’s Pro membership ($9.99/month or $99/year). Lifetime licence also available for $229. 3,000+ sounds, 80 drum kits, compatible with Zen-Core hardware
  • CONTACT: Roland
Si Truss

I'm Editor-in-Chief of Music Technology, working with Future Music, Computer Music, Electronic Musician and MusicRadar. I've been messing around with music tech in various forms for over two decades. I've also spent the last 10 years forgetting how to play guitar. Find me in the chillout room at raves complaining that it's past my bedtime.