Renaissance French lute tablature for 7 course lute

Indeed, it is one of the proposed styles. The easiest way is to choose it in the creation wizard - image below. By default, the Lute (Tablature) is setted with the French style - and six courses. You get this: template.mscz

Then, of course, a standard staff can be associated to it, and the lute can be set with different numbers of courses.

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Yes - IMO Musescore does a very nice job. It takes a little while to set it up but you can then save it as a custom template for future use

I recommend starting the New Score Wizard. After inputting the title, etc (you can leave these blank for now), you'll be invited to choose a template file. Select 'General' and then 'Choose Instruments' from the drop-down list.

In the next dialog box click the 'Common' button to reveal more types of instruments and choose 'Early Music' , then 'Strings - plucked' and finally 'Lute tablature'. Then as shown by Cadiz1 above select '6-string French'. (You add the seventh string later.) Keep on through the wizard until you end up with a blank score.

Now, right-click in an empty bar and choose 'Stave/Part properties'. Here you can choose the number of strings and their pitches. Then click 'Advanced style properties' and choose your font and note value symbols - there are lots of options. You can also untick 'Show time signature' here. Slightly more 'authentic' time signatures can be found in the Master Palette (shortcut 'z') - scroll down to 'Symbols / Mediaeval and Renaissance Prolations'. If you like a barline at the start of each line go to 'Format/Style/Barlines' and tick the box "Barline at start of single stave".

You can also add a linked stave to show the music in staff notation as well. Lots of info on tablature in the Handbook here: https://musescore.org/en/handbook/tablature.

HTH. I'm currently using the lockdown to make Renaissance guitar scores, so this is quite fresh in my mind. :)

Edited.