Max for live extends the functionality of Live's suit of instruments.
It allows users to customise their own devices
This is using Live 10 suite
Max is an extension of the Live suit software
It was co developed by cycling 74
You can customize live by creating your own devices
They can be instruments, audio effects or midi effects
There are lots of pre made instruments & tutorials to get you started.
It is already bundled with Live Suite.
Look in the category section of the browser om the left
There ARE 3categories
Audio, instruments, midi effects.
in order to use it, you'll need to understand how to install the required content. It comes in the form of Packs
Either go to Abelton,com and click Max for Live
or click at the bottom of the abelton browser. At the bottom is a list of available packs
Or you can also update from Lives browser
Basic packs are Creative extensions & convoluted Reverb
