Soundtrack is an ambient music player for iOS and macOS.
When doing tasks that require primarily mental movements (for example, programming, designing, writing; or just thinking), some people, some times, are hampered by the minds tendency to fidget.
There is a certain genre of music that helps some of those people, at some of those some times, to get in the "zone".
Soundtrack plays such music.
The essential part is the music, and it comes from SomaFMs matchless Drone Zone internet radio station.
Soundtrack provides a simple and quick access to this music with a minimalist user interface that is well integrated with the OS controls.