"M" commands: M = group move, MF = mezzo forte, MP = mezzo piano
                              ME = meno

"M" has 2 prompts.
   1st prompt:

     "Type staff #, left position, right position, [code #, upper staff #]"

        Up to 5 numbers may be typed.  The 1st number should be that of the
        lowest staff involved in the move - unless the move is to involve all
        staves at once, in which case type any number greater than the highest
        possible staff number (16 in this program).
        The 2nd and 3rd number set the limits of the source material to be
        moved.  If the the 3rd number is zero then the default right hand
        limit will be position 220.
        If the the 4th number is not zero then only items with that code
        number will be moved.
        If a 5th number appears it will be the number of the uppermost staff to
        be involved in the move.




*

   After <enter> is hit the 2nd prompt appears:

     "Type new staff #, left pos., right pos., [steps up-down]"

        If the move is to take place within a single staff, the 1st number
        should be the same as above.  If the move is to a different staff,
        type the proper number.  (Be careful not to write over material
        already on a staff.)  In this case, if a 5th number had been given
        for the 1st prompt then all the items will be moved to different
        staves based on the relation between the original staff number given
        and the number for the new staff.

        Example -  1st prompt response: 2 45 137 0 5
                   2nd   "        "   : 1 45 137
            This moves all material on staves 2 - 5 found between 45 and 137
            to staves 1 - 4.  The horizontal positions are unchanged.
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*


        If the 2nd number for the 2nd prompt is non-zero and the 3rd number
        is zero then all the material will be shifted exactly by the amount.

        Example -  1st prompt response: 2 45 137 0 5
                   2nd   "        "   : 1 52
            This works the same was as above except that all the material is
            moved 52 steps to the right as well as being moved to new staves.
    _________________________________

        The material may be scaled to fill a new area of a different size.

        Example -  1st prompt response: 2 45 137 0 5
                   2nd   "        "   : 1 20 95
            Now material is moved to new staves and the spacing is scaled
            down to fit the smaller new area.
    _________________________________





*


        If a 4th number is given to the 2nd prompt it will cause the affected
        items to move up or down.

        Example -  1st prompt response: 4 0 0 1
                   2nd   "        "   : 4 0 0 2
            The 4th number of the 1st response indicates that only code 1
            items (notes) will be moved.  The 1st 3 numbers of the 2nd response Now material is moved to new staves and the s
            say that there will be no horizontal or staff movement.  But the
            4th number indicates that all the notes will move up 2 steps.

 ***** Type the letter "B" to back up from either of these prompts. *****

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MF = mezzo forte, MP = mezzo piano, ME = meno

     These commands are shortcuts for typing code 9 items.  They should
     normally be followed by 2 or 3 numbers (parameters 2, 3, 4).

          mp 3 45 -2   will put the "mp" sign at position 45 on staff 3,
                       vertical position -2.


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