<s>
The	O
Hierarchical	B-Language
Music	I-Language
Specification	I-Language
Language	I-Language
(	O
HMSL	B-Language
)	O
is	O
a	O
music	O
programming	O
language	O
written	O
in	O
the	O
1980s	O
by	O
Larry	O
Polansky	O
,	O
Phil	O
Burk	O
,	O
and	O
David	O
Rosenboom	O
at	O
Mills	O
College	O
.	O
</s>
<s>
Written	O
on	O
top	O
of	O
Forth	B-Application
,	O
it	O
allowed	O
for	O
the	O
creation	O
of	O
real-time	O
interactive	O
music	O
performance	O
systems	O
,	O
algorithmic	O
composition	O
software	O
,	O
and	O
any	O
other	O
kind	O
of	O
program	O
that	O
requires	O
a	O
high	O
degree	O
of	O
musical	O
informatics	O
.	O
</s>
<s>
It	O
was	O
distributed	O
by	O
Frog	O
Peak	O
Music	O
,	O
and	O
runs	O
with	O
a	O
very	O
light	O
memory	O
footprint	O
(	O
~	O
1	O
megabyte	O
)	O
on	O
Macintosh	B-Device
and	O
Amiga	B-Device
systems	O
.	O
</s>
<s>
Unlike	O
CSound	B-Application
and	O
other	O
languages	O
for	O
audio	O
synthesis	O
,	O
HMSL	B-Language
is	O
primarily	O
a	O
language	O
for	O
making	O
music	O
.	O
</s>
<s>
HMSL	B-Language
has	O
been	O
widely	O
used	O
by	O
composers	O
working	O
in	O
algorithmic	O
composition	O
for	O
over	O
twenty	O
years	O
.	O
</s>
<s>
In	O
addition	O
to	O
the	O
authors	O
(	O
who	O
are	O
also	O
composers	O
)	O
,	O
HMSL	B-Language
has	O
been	O
used	O
in	O
pieces	O
by	O
Nick	O
Didkovsky	O
,	O
The	O
Hub	O
,	O
James	O
Tenney	O
,	O
Tom	O
Erbe	O
,	O
and	O
Pauline	O
Oliveros	O
.	O
</s>
<s>
A	O
Java	B-Device
port	O
of	O
HMSL	B-Language
was	O
developed	O
by	O
Nick	O
Didkovsky	O
under	O
the	O
name	O
JMSL	O
,	O
and	O
is	O
designed	O
to	O
interface	O
to	O
the	O
JSyn	B-Language
API	O
.	O
</s>
