What you describe is pretty simple in Word.

Insert a field using Ctl-F9 (or go to the menu, click insert, go down the list and click on Field). You should see "{ }" with your cursor between the braces.

Inside the braces, type "eq" to make it an equation (sometimes called formula) field. "{eq }"

Next type "\a()" to tell it to make an "array." "{eq \a() }"

Whatever you type inside the parenthesese "()" of the "\a()," with commas between the "pieces," will print in a vertical column.

If you type (x,-,0,0,0,0) you should get a Bb tab (for a D whistle, if I remember my fingerings, but don't count on that). Top hole covered, second half covered, the rest open:

       x
       -
       o
       o
       o
       o

Except that the column will all be within one (tall) line of text, instead of on six lines as displayed here.

There are other things you can do with the \a in an eq field, to make multiple columns, left/right/center justify in the columns, etc, but the simple single column one should do all of what you want.

Ctl-F9 inserts a field.
Shift-F9 toggles between viewing the field, and viewing its "result."

Some kinds of fields "calculate" a result, so for them you need to know that:
F9 updates the calculated value.
Ctl-Shift-F9 "unlinks" a field, so that it becomes the "plain text" result. The eq field is just format, so it can't be unlinked.

If you really wanted "fancy" you could add a "\x()" to make it:

{eq \x(\a(x,x,o,o,o,o))

and get the tab column inside a box that looks a little like one of my old whistles.

I seem to recall that in the "standard" setup, if you "double click" on one of these fields it sends it to the "equation editor" and turns it automatically into a "graphic." I can't test that on my machine because I've disabled the "equation editor."

John