<s>
Mosaic	O
(	O
also	O
called	O
Composer	O
's	O
Mosaic	O
)	O
was	O
a	O
Macintosh	B-Device
scorewriter	B-Application
application	O
for	O
producing	O
music	O
notation	O
,	O
developed	O
by	O
Mark	O
of	O
the	O
Unicorn	O
.	O
</s>
<s>
First	O
released	O
as	O
Professional	O
Composer	O
among	O
early	O
Macintosh	B-Device
software	O
in	O
1984	O
,	O
the	O
application	O
introduced	O
a	O
user	O
interface	O
similar	O
to	O
the	O
word	B-General_Concept
processor	I-General_Concept
.	O
</s>
<s>
The	O
user	O
could	O
also	O
change	O
or	O
extend	O
the	O
tempo	B-Application
,	O
key	B-General_Concept
signature	I-General_Concept
,	O
meter	O
,	O
and	O
other	O
parameters	O
.	O
</s>
<s>
Version	O
2.2	O
(	O
1988	O
)	O
corrected	O
several	O
bugs	O
and	O
improved	O
compatibility	O
with	O
Mac	B-Device
Plus	I-Device
,	O
SE	B-Device
and	O
II	B-Device
.	O
</s>
<s>
In	O
version	O
1.58	O
released	O
in	O
1998	O
,	O
the	O
notation	B-Application
software	I-Application
removed	O
all	O
limits	O
on	O
page	O
size	O
,	O
score	O
length	O
,	O
number	O
of	O
staves	O
,	O
and	O
number	O
of	O
voices	O
per	O
staff	O
.	O
</s>
<s>
After	O
1998	O
,	O
no	O
new	O
versions	O
of	O
Mosaic	O
were	O
released	O
by	O
MOTU	O
,	O
and	O
because	O
it	O
was	O
not	O
compatible	O
with	O
MacOS	B-Application
10	I-Application
,	O
it	O
became	O
orphaned	O
technology	O
and	O
abandonware	O
.	O
</s>
<s>
Competing	O
notation	O
packages	O
are	O
Sibelius	B-Device
,	O
Finale	B-Application
,	O
and	O
Dorico	B-Application
,	O
however	O
no	O
direct	O
conversion	O
of	O
file	O
formats	O
,	O
such	O
as	O
via	O
MusicXML	O
,	O
is	O
possible	O
.	O
</s>
<s>
Mosaic	O
users	O
now	O
have	O
to	O
rely	O
on	O
creating	O
PDF	B-Application
files	I-Application
of	O
Mosaic	O
output	O
under	O
MacOS	B-Operating_System
9	I-Operating_System
and	O
then	O
having	O
these	O
read	O
by	O
OCR	B-Application
programs	O
such	O
as	O
PDFtoMusic	O
and	O
PhotoScore	O
by	O
Neuratron	O
.	O
</s>
