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Virtual Bassist MELLOW 2
What is it?
Format(s)
Instrument(s)   
Operating System Availability
Operating System Latest Version
 2.1.1 
System Requirements
Windows 8 or later
64-bit only
You may run it on earlier versions but we don't support and fully qualify them.  Minimum Requirements
4 GB of RAM
4 GB of Disk Space
1280x768px Display
Internet Connection  Plug-in Formats
VST, AU 2, and AAX
If you want to move your .blob file to an external drive, we recommend the use of a SSD to prevent dropouts.
AU 2 version only compatible with Logic Pro X and newer.  Additional Information
Comes as a downloadable installer file
Authorize by email address and password for ujam.com within the plug-in
Supports MIDI standard
 2.1.1 
System Requirements
macOS X 10.11 or later
64-bit only
You may run it on earlier versions but we don't support and fully qualify them.  Minimum Requirements
4 GB of RAM
4 GB of Disk Space
1280x768px Display
Internet Connection  Plug-in Formats
VST, AU 2, and AAX
If you want to move your .blob file to an external drive, we recommend the use of a SSD to prevent dropouts.
AU 2 version only compatible with Logic Pro X and newer.  Additional Information
Comes as a downloadable installer file
Authorize by email address and password for ujam.com within the plug-in
Supports MIDI standard
Audio Demos
License & Installation Method
Instant (Serial Number)
Tell Me More
For related news items, downloads and more please see the full KVR product page for
Virtual Bassist MELLOW 2

The Organic Acoustic

Smooth & Elegant Fingered Acoustic Bass

Forget Double Bass as you know it

Please meet Virtual Bassist MELLOW – a double bass played by a jazzy acoustic hipster that offers body, texture and a big bottom end.

What's new?:

  • 20 new styles.
  • 30 new presets.
  • 15 Finisher multi-effect modes.
  • MIDI Drag and Drop.
  • Backwards-compatibility.

What you get:

  • A total of 60 Styles and 1380 Phrases.
  • An upright bass that goes from smooth to powerful.
  • Powerful-yet-simple sound shaping options.
  • Artificially intelligent articulation modeling.

Smooth and elegant

However, MELLOW is not only meant for jazz trios. It gives Singer Songwriter, RnB and Hip Hop styles a soft, soulful and acoustic realism.

Organic, hip and yummy

Virtual Bassist MELLOW – inside is a meticulously recorded acoustic double bass, played with soul and feeling, implanted in a virtual instrument that adds realism, behavior and a player who knows his way around. Smooth, elegant, with the odd sound here and there. At home as a subtle foundation in a jazz trio as well as a powerful second voice in hip hop.

Frustration-free design
As with every UJAM product, MELLOW benefits from the frustration-free design philosophy, meaning that anyone can make music faster, better and easier with this product, regardless of their level of experience in music production. Simply follow the simple controls on the user interface to use one of over 60 styles and 1380 phrases for your tracks.

Features at a glance
MELLOW's smooth, soulful and acoustic realism is unique. Even seasoned bass players themselves will appreciate the ability to get great sounding ideas down fast – with practically zero learning curve.

Player mode
Virtual Bassist MELLOW has two distinct modes – Firstly, Player Mode, that gives you easy access to UJAMs traditional fail-free GUI and control set, just set the musical key and decide on the chords of the song and MELLOW does the hard work, even intelligently choosing the most appropriate articulations to augment your basslines.

Instrument mode
For those that want more control and are comfortable playing the keyboard, our brand-new Instrument mode will let you access the whole of MELLOW's meticulously sampled fretboard with your MIDI controller, complete with dead notes, full stops and satisfying slides.

Sound shaping options
Add that last bit of sparkle with MELLOW, a simple but powerful set of tone shaping controls with separate parameters for many useful sonic and performance-enhancing features. Experiment with amp selection, instant character changes on dial-up, note vibrato level, room reverb level, octave effects, not to mention dynamics and EQ.

User Reviews Average user rating of 1.00 from 1 review Add A Review
Virtual Bassist MELLOW 2

Reviewed By como baila [all]
March 28th, 2020
Version reviewed: 1 on Windows

I have multiple UJAM instruments that I acquired on the cheap through their promotions after I purchase one of the guitars.

They promote on the 'sounds good, easy to use' principle ... both true.

But for some arcane reason they refuse to implement MIDI out in their instruments, thereby crippling the ability to get creative with the MIDI algorithms the instruments generate and use.

I've contacted them several times over the years to response of 'great idea, we're looking into it.'

Still hasn't happened.

So, I'm not buying or even auditioning any of their new products until they get their act together and implement this essential feature.

Consider this a one star review for the company.

Read Review

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