<s>
Common	B-Application
Music	I-Application
Notation	I-Application
(	O
CMN	O
)	O
is	O
open-source	O
musical	O
notation	O
software	O
.	O
</s>
<s>
It	O
is	O
written	O
in	O
Common	B-Language
Lisp	I-Language
and	O
runs	O
on	O
a	O
variety	O
of	O
operating	B-General_Concept
systems	I-General_Concept
and	O
Common	B-Language
Lisp	I-Language
implementations	O
.	O
</s>
<s>
The	O
output	O
file	O
format	O
of	O
CMN	O
is	O
Encapsulated	B-Language
PostScript	I-Language
.	O
</s>
