<s>
SoundTracker	B-Language
is	O
a	O
free	B-Application
tracker	B-Application
for	O
Unix-like	B-Operating_System
operating	I-Operating_System
systems	I-Operating_System
running	O
X	B-Operating_System
Window	I-Operating_System
System	I-Operating_System
for	O
composing	O
music	O
to	O
be	O
saved	O
in	O
module	O
files	O
.	O
</s>
<s>
Its	O
name	O
is	O
a	O
tribute	O
to	O
the	O
1987	O
Amiga	B-Device
program	O
Ultimate	B-Device
Soundtracker	I-Device
which	O
is	O
regarded	O
as	O
the	O
first	O
program	O
of	O
this	O
type	O
,	O
while	O
its	O
user	O
interface	O
mostly	O
resembles	O
and	O
indeed	O
functionally	O
mimics	O
Fast	O
Tracker	B-Application
,	O
one	O
of	O
many	O
popular	O
MS-DOS-based	O
audio	B-Application
trackers	I-Application
,	O
supporting	O
saving	O
in	O
its	O
file	O
formats	O
.	O
</s>
<s>
Initially	O
SoundTracker	B-Language
had	O
used	O
GTK+	B-Application
(	O
version	O
1	O
)	O
as	O
its	O
widget	B-Library
toolkit	I-Library
,	O
modern	O
versions	O
(	O
since	O
1.0.0	O
)	O
use	O
GTK+2	O
.	O
</s>
<s>
For	O
many	O
years	O
,	O
SoundTracker	B-Language
was	O
one	O
of	O
the	O
very	O
few	O
mature	O
audio	B-Application
trackers	I-Application
available	O
for	O
Unix-like	B-Operating_System
operating	I-Operating_System
systems	I-Operating_System
.	O
</s>
