def changed(image_path=None):
    if image_path is None:
        _dimensions_cache.clear()
        return
    if image_path in _dimensions_cache:
        del _dimensions_cache[image_path]
Returns the frequency of the note (key) keys from A0
dataset/ETHPy150Open mikeorr/WebHelpers2/unfinished/multimedia.py/changed--crossover with--dataset/ETHPy150Open jdan/Melopy/melopy/utility.py/key_to_frequency