<s>
is	O
a	O
music	B-Application
video	I-Application
game	I-Application
developed	O
by	O
Konami	O
for	O
the	O
Family	B-Device
Computer	I-Device
Disk	I-Device
System	I-Device
,	O
and	O
published	O
in	O
1987	O
.	O
</s>
<s>
The	O
software	O
's	O
retail	O
package	O
included	O
a	O
musical	O
keyboard-like	O
input	B-Device
device	I-Device
for	O
playing	O
and	O
composing	O
music	O
with	O
various	O
synthesized	O
instruments	O
.	O
</s>
<s>
The	O
36-key	O
keyboard	O
comprises	O
three-octaves	O
.	O
</s>
