Error that is raised when constructing a
SamplerInfo instance that is invalid. “Invalid” means that one or more fields have a value that can't be encoded in the field inside a *.wav file. For example, there's no way to encode “-23” as a value for the midi_note field. However, this error _won't_ be raised for values that can be encoded, but aren't semantically correct. For example, it's possible to construct a
SamplerInfo instance with a midi_note value of 10000, which can be encoded in a *.wav file, even though this isn't a valid value in real life.