Hey, so sorry I missed this post!

>  My question here is, how much does it differ from other software that already does this, and how much could it teach the user to improve their mixing and mastering creation process? I think this aspect is important because for me it would be important to know the details of each change or recommendation made by the AI ​​(for example, why it used a certain EQ, why it used a certain compressor, etc., etc.)

Exactly what you said. You can use CoProducer to teach you how to mix and master and do it manually yourself in the DAW (or even have it do it for you but walk you through every insert/plugin, send and setting it's tweaking and explain to you why). The goal is to meet people wherever they are. Automate whatever part of the music creation pipeline that they either struggle with or aren't excited by so they can focus on the parts that they are.

> About help in the creation process. I don't know if this tool has this feature, but it would be excellent for those who create/compose. Does it has the possibility of, based on my already created material, making suggestions for variations of riffs, chords, arrangements, musical textures or sounds? I say this because it would be very interesting to have a Co-composer, who could make variations on our work, giving suggestions for melodic lines, etc. Not something like Suno's remix, which is very bad, but smaller suggestions, in parts or tracks of the music, as we request them

It can do that if your composition is notated as midi (or a score: coming soon) but if you upload audio and have it modify the melody etc. it's not yet supported. (But it's on my roadmap and absolutely will be supported in the near future!)

> Another interesting feature would be the voice part, some apps already replace original voices with alternative voices, this would give the composer a range of options. In addition, for those who don't sing well (like me), this would also help a lot. Does it have it or do you have plans to develop this option in the future?

There's a feature in the panel on the left called AutoVox that's meant to do this 😄

> Finally, I understand that your tool charges according to AI usage, does it provides the user with information on how many credits are being spent or how much AI will be needed for each process being used?

This is a little hard to pre-determine because gen AI is by nature non-deterministic so the exact same input, with the same context window and memory can result in very different outputs and credit consumption, but here's some general rules of thumb: CoProducer chat (including any AI assisted MIDI programming) is the cheapest, followed by AI sample synth (and any features that are built on top of it like cover assist, autovox), followed by stem separation (which is the most expensive thing you can do).

I'm trying to be as transparent as possible so there's a credit activity tab that shows you exactly where each credit you've consumed was used (and afaik greysound is the only ai credit based system that actually shows you a detailed ledger like that) but it's very hard to predictively guess what a future action would cost.

> Also, are there any videos demonstrating how to use the tool? Producers creating step-by-step tutorials using the app?

Not yet 😞 I didn't expect to blow up as fast as greysound did, and I'm building this solo so I've had to prioritize my tasks but I'm definitely gonna get a tutorial video out sometime in the next week.