<s>
Cakewalk	B-Application
was	O
a	O
sequencer	O
first	O
developed	O
by	O
Twelve	O
Tone	O
Systems	O
,	O
Inc	O
.	O
(	O
the	O
company	O
later	O
known	O
as	O
Cakewalk	B-Application
,	O
Inc	O
.	O
)	O
.	O
</s>
<s>
Originally	O
for	O
DOS	B-Device
,	O
starting	O
with	O
version	O
Cakewalk	B-Application
1.0	O
in	O
1987	O
,	O
and	O
,	O
beginning	O
in	O
1991	O
,	O
for	O
Windows	B-Application
3.0	I-Application
.	O
</s>
<s>
Cakewalk	B-Application
,	O
until	O
version	O
4.0	O
required	O
an	O
MPU-401	O
MIDI	O
interface	O
card	O
operating	O
in	O
intelligent	O
mode	O
,	O
while	O
4.0	O
and	O
later	O
versions	O
relied	O
on	O
the	O
dumb	O
UART	O
mode	O
only	O
.	O
</s>
<s>
Cakewalk	B-Application
was	O
delivered	O
in	O
two	O
versions	O
,	O
Cakewalk	B-Application
Pro	O
and	O
Cakewalk	B-Application
Express	I-Application
.	O
</s>
<s>
Cakewalk	B-Application
was	O
a	O
purely	O
MIDI	O
based	O
sequencer	O
:	O
Although	O
it	O
could	O
trigger	O
WAV	O
files	O
at	O
certain	O
points	O
,	O
more	O
comprehensive	O
audio	O
support	O
was	O
not	O
incorporated	O
until	O
the	O
advent	O
of	O
Cakewalk	B-Application
Pro	O
Audio	O
when	O
true	O
support	O
for	O
digitized	O
audio	O
was	O
added	O
.	O
</s>
<s>
The	O
last	O
version	O
of	O
the	O
product	O
featured	O
a	O
piano	O
roll	O
editor	O
,	O
support	O
for	O
limited	O
music	O
notation	O
and	O
a	O
built-in	O
scripting	B-Language
language	I-Language
called	O
CAL	O
(	O
Cakewalk	B-Application
Application	O
Language	O
)	O
.	O
</s>
<s>
Cakewalk	B-Application
was	O
a	O
predecessor	O
of	O
SONAR	B-Device
which	O
had	O
nearly	O
all	O
of	O
the	O
same	O
features	O
,	O
including	O
support	O
for	O
CAL	O
,	O
and	O
was	O
the	O
only	O
major	O
DAW	O
on	O
the	O
market	O
supporting	O
a	O
scripting	B-Language
language	I-Language
.	O
</s>
<s>
Cakewalk	B-Application
had	O
piano	O
roll	O
and	O
CAL	O
support	O
since	O
the	O
Windows	O
16-bit	O
Version	O
3.01	O
.	O
</s>
