def METHOD_NAME():
    makeStepper();
    # Stepper tone, viewed in dB.
    do( 'Select: Start=0 End=0' );
    do( 'SetTrack: Scale=dB')
    capture( 'Spectral003.png', 'AllTracks' )
    # As spectrogram.
    do( 'SetTrack: Display=Spectrogram')
    capture( 'Spectral004.png', 'AllTracks' )