What's new in Keyzone Classic 3? Now, not only can you use it on MAC and Windows computers, but it also runs on Linux and can be used on iOS systems. From today, there is AAX support as well, and the Sampler engine works in all DAWs. We've further reduced the size of the sound banks using lossless compression. Additionally, by decreasing RAM usage, users can now operate Keyzone Classic 3 more smoothly in their projects. Several new high-quality pianos have also been added alongside the already familiar sounds from Keyzone 2.