This is a font of music symbols.  All MF sources are original.  The
symbols are modelled after various editions of music, notably

	- Baerenreiter
	- Hofmeister
	- Breitkopf
	- Durand & C'ie

The best references on Music engraving are [Wanske] and [Ross], some
of their insights have also been used.  Although a matter of taste,
I'd say that Baerenreiter has the finest typography of all.

Traditional engraving uses a set of 9 standardised sizes for Staffs
(running from 0 to 8).  

I tried measuring those (helped by a magnifying glass), and I get the
staffsizes in the following table.  One should note that these are
estimates, so I think there could be a measuring error of ~ .5 pt.
Moreover [Ross] states that not all engravers use exactly those sizes.

Staffsize	Numbers		Name

26.2pt		No. 0
22.6pt		No. 1		Giant/English
21.3pt		No. 2		Giant/English
19.9pt		No. 3		Regular, Ordinary, Common
19.1pt		No. 4		Peter
17.1pt		No. 5		Large middle
15.9pt		No. 6		Small middle
13.7pt		No. 7		Cadenza
11.1pt		No. 8		Pearl


This table is partially taken from [Ross].  Most music is set in No.3,
but the papersizes usually are bigger than standard printer paper
(such as A4).

[Ross] states that the dies (the stamps to make the symbols) come in
12 different sizes.