User Posts

The second bullet point under Product Features at the top of the page directly credits "Mutable Instruments Plaits sound engines".
-- homeslice1479

You are right there is mention of MI in the product features "20 digital oscillators including 15 Mutable Instruments Plaits* engines for infinite sound creation".

Also the license for MI Plaits is the MIT license (see: https://mutable-instruments.net/modules/plaits/open_source/ ), which means that license should be included in the derived work, but source code need not be. Fair enough.

But then you had to say "Don't be a hypocritical cork sniffer here." Now that's original.

Even the clones give credit.

I don't see any mentioned of Plaits or MI. Given that the work is derivative of MI Plaits they should acknowledge as such and give credit to Emilie Gillet. The licensing on the GitHub page for MI (https://github.com/pichenettes/eurorack) says it is GPL3.0 in the case of Code (AVR projects) and the MIT license in the case of Code (STM32F projects). My reading of this is that in both cases, the license and copyright has to be published with the derivative work and in the case of the GPL 3.0 the source code of the derived work has to be open-source and provided with it.

Here's another: https://www.modulargrid.net/e/make-noise-o-coast