There is provided a mixing method which is executed by a mixing apparatus and enables cascade connection without providing the mixing apparatus with any terminals used exclusively for cascade connection. The mixing method is executed by a first mixing apparatus including a plurality of input terminals when a second mixing apparatus is connected in cascade to part of the input terminals of the first mixing apparatus. At least one audio signal input to part of the plurality of input terminals is set as at least one cascade signal supplied from the second mixing apparatus. Arithmetic operations are performed on at least one audio signal input to at least one input terminal other than the part of the plurality of input terminals. The at least one cascade signal and the at least one audio signal on which the arithmetic operations have been performed are mixed.