You'll need the following dependencies:

• meson
• libaccounts-glib-dev
• libclutter-gtk-1.0-dev
• libdbus-glib-1-dev
• libgda-5.0-dev
• libgee-0.8-dev
• libglib2.0-dev
• libgpod-dev
• libgranite-dev >= 5.2.0
• libsignon-glib-dev >= 2.0
• libgstreamer1.0-dev
• libgstreamer-plugins-base1.0-dev
• libgtk-3-dev >= 3.22
• libjson-glib-dev
• libnotify-dev
• libpeas-dev
• libsoup2.4-dev
• libtagc0-dev
• libxml2-dev
• libzeitgeist-2.0-dev
• valac

It's recommended to create a clean build environment. Run meson to configure the build environment and then ninja to build

meson build --prefix=/usr
cd build
ninja

To install, use ninja install, then execute with io.elementary.music

sudo ninja install
io.elementary.music

You can run tests with ninja test, and reset the build environment with ninja clean.

You can use these options to configure your build:

• build-plugins: true to build plugins or false to ony compile the core and the application
• plugins: any of lastfm, audioplayer, cdrom and ipod, separated by commas
• prefix: the installation prefix

To define their values, use meson configure

# For instance, if you want to disable plugins:
meson configure -Dbuild-plugins=false

Music includes valadoc documentation for developers, to autogenerate them from git master enable valadoc:

meson configure -Ddocumentation=true

The compiled documentation in html format will appear in build/docs when you run ninja. Be aware that creating docs is very slow and it's a good idea to disable building them when you're not using them.