Originally Posted By: Pipeline
Frustration-Free Design

As with every UJAM Instruments product, MELLOW benefits from our frustration-free design philosophy meaning anyone can use this product to make music faster, better and easier, regardless of their music production experience level. Just follow the simple controls on the user interface to easily trigger one of over 40 styles and 450 phrases to use in your tracks.
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.

That's why EZKeys and EZDrummer are still in version 1 because they are well thought out and designed.
There was suppose to be an EZBass released last year but it was deleayed:

EZbass release month announced.

Umeå, Sweden, January 17, 2020.
Today, Toontrack announced that the official release month for EZbass will be May 2020. As already announced, EZbass is Toontrack’s highly anticipated bass software instrument and the next core title in the company’s widely popular EZ Line of products.

“A bass instrument with the same intuitive design and flexibility as our other EZ Line products has been missing on the market and is something that our customer base repeatedly has asked for. EZbass falls perfectly in place to fill the gap between EZkeys and EZdrummer 2 and we can’t wait to see and hear what our customers will do with it in May and beyond,” says Erik Phersson, Toontrack’s Head of Development.

In addition to carefully sampled bass tones, EZbass will include MIDI as well as a host of features to aid the user in quickly and effortlessly adding bass to their songs. Aside from the soon-to-be-released EZbass, the EZ Line includes EZkeys, EZmix 2, EZdrummer 2 and a wide range of expansion content.

There are certainly excellent examples to learn from. If someone wanted to learn...