<s>
MusiXTeX	B-Application
is	O
a	O
suite	O
of	O
open	B-License
source	I-License
music	B-Application
engraving	I-Application
macros	O
and	O
fonts	O
that	O
allow	O
music	B-Application
typesetting	I-Application
in	O
TeX	B-Application
,	O
released	O
under	O
the	O
GPL-2.0-or-later	B-License
license	O
.	O
</s>
<s>
Macros	O
for	O
typesetting	O
music	O
in	O
TeX	B-Application
first	O
appeared	O
in	O
1987	O
(	O
MuTeX	B-Operating_System
)	O
and	O
were	O
limited	O
to	O
one-staff	O
systems	O
.	O
</s>
<s>
In	O
1997	O
the	O
positioning	O
problems	O
were	O
corrected	O
in	O
MusiXTeX	B-Application
,	O
which	O
includes	O
the	O
external	O
application	O
musixflx	O
to	O
control	O
the	O
horizontal	O
distances	O
.	O
</s>
<s>
This	O
new	O
module	O
requires	O
a	O
three-pass	O
compilation	O
:	O
TeX	B-Application
,	O
musixflx	O
and	O
TeX	B-Application
again	O
.	O
</s>
<s>
MusiXTeX	B-Application
requires	O
ghostscript	B-Language
.	O
</s>
<s>
When	O
compiling	O
a	O
TeX	B-Application
source	O
file	O
named	O
file.tex	O
,	O
a	O
file.mx1	O
is	O
generated	O
,	O
containing	O
information	O
about	O
the	O
distances	O
between	O
staves	O
and	O
bar	O
lengths	O
.	O
</s>
<s>
This	O
file	O
is	O
processed	O
by	O
the	O
program	O
musixflx	O
,	O
which	O
determines	O
the	O
distances	O
between	O
notes	O
for	O
each	O
beat	O
and	O
writes	O
them	O
in	O
file.mx2	O
,	O
which	O
is	O
used	O
in	O
compiling	O
the	O
final	O
TeX	B-Application
file	O
.	O
</s>
<s>
Any	O
changes	O
in	O
the	O
score	O
that	O
affect	O
the	O
horizontal	O
distances	O
require	O
file.mx2	O
to	O
be	O
deleted	O
and	O
all	O
three	O
passes	O
to	O
be	O
performed	O
again	O
;	O
otherwise	O
,	O
only	O
one	O
compilation	O
in	O
TeX	B-Application
is	O
required	O
.	O
</s>
<s>
In	O
1996	O
,	O
Han-Wen	B-Application
Nienhuys	I-Application
and	O
Jan	B-Application
Nieuwenhuizen	I-Application
,	O
who	O
were	O
working	O
in	O
the	O
MusiXTeX	B-Application
PreProcessor	O
(	O
MPP	O
)	O
project	O
since	O
the	O
previous	O
year	O
,	O
decided	O
to	O
create	O
a	O
new	O
music	B-Application
engraving	I-Application
program	O
loosely	O
based	O
on	O
MusiXTeX	B-Application
's	O
concepts	O
,	O
named	O
LilyPond	B-Application
.	O
</s>
<s>
LilyPond	B-Application
1.0	O
was	O
released	O
on	O
31	O
July	O
1998	O
,	O
highlighting	O
the	O
development	O
of	O
a	O
custom	O
music	O
font	O
,	O
Feta	O
,	O
and	O
the	O
complete	O
separation	O
of	O
LilyPond	B-Application
from	O
MusiXTeX	B-Application
.	O
</s>
<s>
PMX	O
is	O
a	O
preprocessor	O
for	O
MusiXTeX	B-Application
written	O
by	O
Don	O
Simons	O
.	O
</s>
