Why would it not apply in this case? The sample isn't particularly large, and we don't know the extent of possible selection biases. For example one obvious bi

Why would it not apply in this case? The sample isn't particularly large, and we don't know the extent of possible selection biases. For example one obvious bias is that the sample is restricted to data sent through Docsend, thus likely does not represent a uniform sampling of all pitches. In any case, there is no prior reason to exclude outliers; any large enough representative sampling of a Gaussian distribution would include "outliers".