Evidence matrix for Holistic Rhythmic Development: a level- and timing-based framework for play materials in the second and third years

The evidence matrix underlying the skill classifications, age-band stress test and element tiering reported in a conceptual framework paper on early childhood play materials (Holistic Rhythmic Development, 12-36 months).

Contents: the ten skills examined with their classification under the framework's evidential bars, every source assessed with its design and sample, a decision log recording all classifications revised during preparation, and the identified evidence gaps. Deposited so that the classifications can be examined and contested independently of the author, who declares a conflict of interest in the manuscript. See README.md for the bars, the contestation procedure and the limitations.