<s>
Will	O
Harvey	O
's	O
Music	B-Device
Construction	I-Device
Set	I-Device
(	O
MCS	O
)	O
is	O
a	O
music	O
composition	B-Application
notation	I-Application
program	B-Application
designed	O
by	O
Will	O
Harvey	O
for	O
the	O
Apple	B-Device
II	I-Device
and	O
published	O
by	O
Electronic	O
Arts	O
in	O
1983	O
.	O
</s>
<s>
Harvey	O
wrote	O
the	O
original	O
Apple	B-Device
II	I-Device
version	O
in	O
assembly	B-Language
language	I-Language
when	O
he	O
was	O
15	O
and	O
in	O
high	O
school	O
.	O
</s>
<s>
MCS	O
was	O
conceived	O
as	O
a	O
tool	O
to	O
add	O
music	O
to	O
his	O
previously	O
published	O
game	O
,	O
an	O
abstract	O
shooter	O
called	O
Lancaster	O
for	O
the	O
Apple	B-Device
II	I-Device
.	O
</s>
<s>
Music	B-Device
Construction	I-Device
Set	I-Device
was	O
ported	O
to	O
the	O
Atari	B-Device
8-bit	I-Device
family	I-Device
,	O
Commodore	O
64	O
,	O
IBM	B-Device
PC	I-Device
(	O
as	O
a	O
booter	O
)	O
,	O
and	O
the	O
Atari	B-Device
ST	I-Device
.	O
Two	O
years	O
later	O
,	O
in	O
1986	O
,	O
Will	O
Harvey	O
released	O
a	O
port	O
for	O
the	O
16-bit	O
Apple	B-Device
IIGS	I-Device
,	O
utilizing	O
its	O
advanced	O
sound	O
.	O
</s>
<s>
Also	O
that	O
year	O
,	O
a	O
redesigned	O
version	O
for	O
the	O
Amiga	B-Device
and	O
Macintosh	B-Device
was	O
released	O
as	O
Deluxe	B-Application
Music	I-Application
Construction	I-Application
Set	I-Application
.	O
</s>
<s>
With	O
MCS	O
,	O
a	O
user	O
can	O
create	O
musical	O
composition	O
via	O
a	O
graphical	B-Application
user	I-Application
interface	I-Application
,	O
a	O
novel	O
concept	O
at	O
the	O
time	O
of	O
its	O
release	O
.	O
</s>
<s>
The	O
program	B-Application
comes	O
with	O
a	O
few	O
popular	O
songs	O
as	O
samples	O
.	O
</s>
<s>
Most	O
versions	O
of	O
this	O
program	B-Application
require	O
the	O
users	O
to	O
use	O
a	O
joystick	B-Device
to	O
create	O
their	O
songs	O
,	O
note	O
by	O
note	O
.	O
</s>
<s>
The	O
original	O
Apple	B-Device
II	I-Device
version	O
supports	O
the	O
Mockingboard	O
expansion	B-Device
card	I-Device
for	O
higher	O
fidelity	O
sound	O
output	O
.	O
</s>
<s>
Without	O
it	O
,	O
the	O
Apple	B-Device
II	I-Device
ca	O
n't	O
update	O
the	O
display	O
while	O
playback	O
is	O
in	O
progress	O
.	O
</s>
<s>
Electronic	O
Arts	O
ported	O
MCS	O
from	O
the	O
original	O
Apple	B-Device
II	I-Device
version	O
to	O
the	O
Atari	B-Device
8-bit	I-Device
family	I-Device
,	O
IBM	B-Device
PC	I-Device
,	O
and	O
the	O
Commodore	O
64	O
.	O
</s>
<s>
The	O
Atari	B-Device
8-bit	I-Device
and	O
Commodore	O
64	O
versions	O
use	O
the	O
multi-channel	O
audio	O
hardware	O
of	O
those	O
systems	O
.	O
</s>
<s>
The	O
IBM	B-Device
PC	I-Device
version	O
allows	O
output	O
audio	O
via	O
the	O
IBM	B-Device
PC	I-Device
Model	O
5150	O
's	O
cassette	O
port	O
,	O
so	O
4-voice	O
music	O
can	O
be	O
sent	O
to	O
a	O
stereo	O
system	O
.	O
</s>
<s>
It	O
also	O
takes	O
advantage	O
of	O
the	O
3-voice	O
sound	O
chip	O
built	O
into	O
the	O
IBM	B-Device
PCjr	I-Device
and	O
Tandy	O
1000	O
.	O
</s>
<s>
The	O
Apple	B-Device
IIGS	I-Device
version	O
was	O
done	O
by	O
the	O
original	O
programmer	O
,	O
Will	O
Harvey	O
,	O
in	O
1986	O
.	O
</s>
<s>
The	O
version	O
of	O
Music	B-Device
Construction	I-Device
Set	I-Device
for	O
the	O
Atari	B-Device
ST	I-Device
is	O
not	O
a	O
port	O
and	O
shares	O
no	O
source	O
code	O
with	O
the	O
original	O
versions	O
.	O
</s>
<s>
It	O
was	O
acquired	O
from	O
Intersect	O
Software	O
by	O
Electronic	O
Arts	O
and	O
rebranded	O
Music	B-Device
Construction	I-Device
Set	I-Device
in	O
1987	O
.	O
</s>
<s>
The	O
Atari	B-Device
ST	I-Device
version	O
is	O
the	O
first	O
version	O
to	O
have	O
supported	O
the	O
new	O
MIDI	O
standard	O
,	O
with	O
this	O
computer	O
's	O
built-in	O
MIDI	O
hardware	O
.	O
</s>
<s>
The	O
program	B-Application
was	O
completely	O
redesigned	O
for	O
the	O
Amiga	B-Device
and	O
Macintosh	B-Device
and	O
renamed	O
Deluxe	B-Application
Music	I-Application
Construction	I-Application
Set	I-Application
.	O
</s>
<s>
II	O
Computing	O
listed	O
Music	B-Device
Construction	I-Device
Set	I-Device
third	O
on	O
the	O
magazine	O
's	O
list	O
of	O
top	O
Apple	B-Device
II	I-Device
education	O
software	O
as	O
of	O
late	O
1985	O
,	O
based	O
on	O
sales	O
and	O
market-share	O
data	O
.	O
</s>
<s>
Music	B-Device
Construction	I-Device
Set	I-Device
sold	O
over	O
a	O
million	O
units	O
.	O
</s>
<s>
stated	O
that	O
despite	O
some	O
limitations	O
,	O
Music	B-Device
Construction	I-Device
Set	I-Device
for	O
the	O
Commodore	O
64	O
"	O
will	O
aid	O
both	O
experienced	O
songwriters	O
and	O
dedicated	O
novices	O
alike	O
.	O
</s>
