Getting Amarok
Amarok is widely available on various Linux distributions and other systems, from their default or additional package repositories. Partially outdated list can be found on the wiki. One can also refer to e.g. Repology for more up-to-date information. A Flatpak can be downloaded from Flathub.
The releases are also available as source tarballs, and compilation instructions are provided on the wiki.
A development version can be built from the source code on invent.kde.org.
It is possible to build Amarok 3.2.2 and later versions on Windows systems, but there are still unresolved issues, and no Windows releases are provided at the moment. The previous version available on Windows was 2.8.0, released in 2013, and can be considered unmaintained.