<s>
OpenMusic	B-Language
(	O
OM	O
)	O
is	O
an	O
object-oriented	O
visual	O
programming	O
environment	O
for	O
musical	O
composition	O
based	O
on	O
Common	B-Language
Lisp	I-Language
.	O
</s>
<s>
OpenMusic	B-Language
is	O
the	O
last	O
in	O
a	O
series	O
of	O
computer-assisted	B-Application
composition	I-Application
software	O
designed	O
at	O
IRCAM	O
.	O
</s>
<s>
Versions	O
of	O
OpenMusic	B-Language
are	O
currently	O
available	O
for	O
Mac	B-Operating_System
OS	I-Operating_System
X	I-Operating_System
(	O
PowerPC	B-Architecture
and	O
Intel	B-Device
)	O
,	O
Windows	B-Application
and	O
Linux	B-Application
.	O
</s>
<s>
The	O
source	O
code	O
has	O
been	O
released	O
under	O
the	O
GNU	B-Application
Lesser	I-Application
General	I-Application
Public	I-Application
License	I-Application
(	O
LGPL	B-Application
)	O
.	O
</s>
<s>
Programs	O
in	O
OpenMusic	B-Language
are	O
created	O
by	O
connecting	O
together	O
(	O
a	O
process	O
known	O
as	O
'	O
patching	O
 '	O
)	O
either	O
pre-defined	O
or	O
user-defined	O
modules	O
,	O
in	O
a	O
similar	O
manner	O
to	O
graphical	O
signal-processing	O
environments	O
such	O
as	O
Max/MSP	B-Application
or	O
Pd	B-Language
.	O
</s>
<s>
Unlike	O
such	O
environments	O
,	O
however	O
,	O
the	O
result	O
of	O
an	O
OpenMusic	B-Language
computation	O
will	O
typically	O
be	O
displayed	O
in	O
conventional	O
music	O
notation	O
,	O
which	O
can	O
then	O
be	O
directly	O
manipulated	O
,	O
if	O
so	O
required	O
,	O
via	O
an	O
editor	O
.	O
</s>
<s>
A	O
substantial	O
body	O
of	O
specialized	O
libraries	O
has	O
been	O
contributed	O
by	O
users	O
,	O
which	O
extends	O
OpenMusic	B-Language
's	O
functionality	O
into	O
such	O
areas	O
as	O
constraint	B-Application
programming	I-Application
,	O
aleatoric	O
composition	O
,	O
spectral	O
music	O
,	O
minimalist	O
music	O
,	O
music	O
theory	O
,	O
fractals	B-Application
,	O
music	B-Application
information	I-Application
retrieval	I-Application
,	O
sound	O
synthesis	O
etc	O
.	O
</s>
