<s>
GrandOrgue	B-Language
is	O
a	O
free	B-License
and	I-License
open-source	I-License
virtual	O
pipe	O
organ	O
simulator	O
,	O
which	O
utilizes	O
the	O
wxWidgets	B-Language
widget	B-Library
toolkit	I-Library
.	O
</s>
<s>
It	O
was	O
originally	O
developed	O
as	O
MyOrgan	O
,	O
a	O
free	O
version	O
of	O
Hauptwerk	B-Application
1	O
,	O
starting	O
in	O
2006	O
.	O
</s>
<s>
It	O
has	O
builds	O
for	O
Linux	B-Application
,	O
Windows	B-Application
,	O
and	O
OS	B-Application
X	I-Application
.	O
</s>
<s>
GrandOrgue	B-Language
is	O
the	O
free	O
alternative	O
to	O
Hauptwerk	B-Application
software	O
,	O
it	O
is	O
free	O
to	O
download	O
and	O
use	O
.	O
</s>
<s>
With	O
GrandOrgue	B-Language
,	O
a	O
user	O
may	O
download	O
virtual	O
replicas	O
of	O
real	O
organs	O
around	O
the	O
world	O
,	O
called	O
sample	O
sets	O
.	O
</s>
<s>
Many	O
free	O
sample	O
sets	O
are	O
available	O
,	O
mainly	O
from	O
Lars	O
Palo	O
and	O
Piotr	O
Grabowski	O
,	O
but	O
there	O
are	O
also	O
downloadable	O
ODFs	O
(	O
organ	O
definition	O
files	O
)	O
for	O
commercially	O
available	O
organs	O
for	O
Hauptwerk	B-Application
,	O
such	O
as	O
the	O
virtual	O
organ	O
of	O
the	O
Abbey	O
in	O
Caen	O
.	O
</s>
