The [skip-list](https://github.com/sdatkinson/NeuralAmpModelerCore/blob/69c57f7e6a92c1ebd7e3256f505bcb8566b035f7/dsp/wav.cpp#L17) is getting long. An allow-list (i.e. `idIsNotJunk()`) will probably be a simpler implementation and support more formats.