OptionalaccidentalsHow the main scale relates to the parent. Defaults to 'sharp'.
OptionaldownHow many bright generators to go downwards. Also the number of small/minor intervals in the resulting scale. Default = 0.
OptionalsizeSize of the large step. Default = 2.
OptionalsizeSize of small step. Default = 1.
OptionalupHow many bright generators to go upwards. Also the number of large/major intervals in the resulting scale. Defaults to the maximum possible.
Parameters for the mosWithParent function.