Classical works develop over time. A movement, a nocturne, a prelude holds attention through phrasing, contrast and return: written to be heard through, built gradually, asking you to stay somewhere for a while. That’s the relationship with attention PureTone is built around.
A session with a shape
PureTone asks how you feel, or what you’re doing, and how much time you have. Then it builds one session of music: works chosen and ordered to hold together.
That is deliberate. Choose a length, or no limit at all; either way you never have to stop and decide what comes next. The music stays where you asked it to be.