A musical note generation device, comprising: a plurality of keys, the plurality of keys respectively being associated with pitch information; and at least one processor, the at least one processor performing processes including: a convolution operation process of generating convolved sound waveform data by convolving first sound waveform data corresponding to the pitch information associated with a specified key with second sound waveform data corresponding to an impulse response; a third sound waveform data generation process of generating third sound waveform data by respectively reducing, among frequency components included in the convolved sound waveform data generated by the convolution operation process, amplitudes of respective frequency components of a fundamental tone and harmonics of the fundamental tone corresponding to a pitch indicated by the pitch information; and an output process of outputting piano sound waveform data generated on the basis of the third sound waveform data generated by the third sound waveform data generation process, characterized in that wherein in the third sound waveform data generation process, the at least one processor identifies the respective frequency components of the fundamental tone and the harmonics with a comb filter. a plurality of keys, the plurality of keys respectively being associated with pitch information; and at least one processor, the at least one processor performing processes including: a convolution operation process of generating convolved sound waveform data by convolving first sound waveform data corresponding to the pitch information associated with a specified key with second sound waveform data corresponding to an impulse response; a third sound waveform data generation process of generating third sound waveform data by respectively reducing, among frequency components included in the convolved sound waveform data generated by the convolution operation process, amplitudes of respective frequency components of a fundamental tone and harmonics of the fundamental tone corresponding to a pitch indicated by the pitch information; and an output process of outputting piano sound waveform data generated on the basis of the third sound waveform data generated by the third sound waveform data generation process, characterized in that wherein in the third sound waveform data generation process, the at least one processor identifies the respective frequency components of the fundamental tone and the harmonics with a comb filter. a convolution operation process of generating convolved sound waveform data by convolving first sound waveform data corresponding to the pitch information associated with a specified key with second sound waveform data corresponding to an impulse response; a third sound waveform data generation process of generating third sound waveform data by respectively reducing, among frequency components included in the convolved sound waveform data generated by the convolution operation process, amplitudes of respective frequency components of a fundamental tone and harmonics of the fundamental tone corresponding to a pitch indicated by the pitch information; and an output process of outputting piano sound waveform data generated on the basis of the third sound waveform data generated by the third sound waveform data generation process, characterized in that wherein in the third sound waveform data generation process, the at least one processor identifies the respective frequency components of the fundamental tone and the harmonics with a comb filter.