I am asked to add to psalm-setting two different figured bass lines, separated by a line and with, at the beginning of the first bar, the words "Pretonal" and "Tonal", as can be seen in the screenshot:
Entering FiguredBass1 and FiguredBass2 did not give me anything but error messages, as expected
Has any of you done or seen this double BC line?
Thanks in advance for any advice or suggestion.
Best regards,
Robert Blackstone