Taught MarkupCommand about the LilyPond \score markup command.

Example. Here's the command:

    >>> small_staff = Staff("fs'16 gs'16 as'16 b'16")
    >>> small_staff.remove_commands.append('Clef_engraver')
    >>> small_staff.remove_commands.append('Time_signature_engraver')
    >>> set_(small_staff).font_size = -6
    >>> layout_block = lilypondfiletools.Block(name='layout')
    >>> layout_block.indent = 0
    >>> layout_block.ragged_right = True
    >>> command = markuptools.MarkupCommand(
    ...     'score',
    ...     [small_staff, layout_block],
    ...     )

Here's the format:

    >>> f(command)
    \score
        {
            \new Staff \with {
                \remove Clef_engraver
                \remove Time_signature_engraver
                fontSize = #-3
            } {
                fs'16
                gs'16
                as'16
                b'16
            }
            \layout {
                indent = #0
                ragged-right = ##t
            }
        }

It seems somewhat incredible that this works.

Extremely helpful.