As
well
as
the
human
voices
,
musical
instruments
have
got
different
____________________
.
It
is
caused
by
three
factors
,
such
as
their
____________________
aspect
,
shape
and
____________________
,
the
____________________
they
are
made
from
(
they
are
usually
made
of
____________________
or
wood
)
and
the
way
of
playing
them
(
____________________
,
plucking
,
strucking
,
shaking
)
.
The
previous
characterictics
determine
the
final
result
.
Depending
on
the
materials
they
are
made
from
and
the
way
of
playing
,
musical
instruments
are
divided
into
three
families
:
string
family
,
____________________
family
and
percussion
family
.
Besides
,
all
of
them
are
subdivided
as
well
into
smaller
groups
,
depending
upon
the
way
of
playing
.
For
example
,
you
can
find
three
groups
in
the
stringed
instruments
,
such
as
those
which
are
____________________
(
____________________
,
viola
,
cello
and
double
-
bass
,
they
are
all
alike
)
,
those
which
are
____________________
(
such
as
____________________
and
guitar
)
and
,
finally
those
which
are
____________________
(
the
piano
)
.
On
the
other
hand
,
the
wind
instruments
are
separeted
in
a
first
step
by
the
material
they
are
made
from
:
brass
and
____________________
.
These
ones
,
once
again
are
subdivided
depending
on
the
way
the
player
makes
the
air
vibrate
in
the
tube
.
The
flute
belongs
to
the
edge
-
note
group
,
the
____________________
and
____________________
to
the
double
-
reed
group
and
the
clarinet
and
____________________
to
the
single
-
reed
group
.
The
brass
instruments
produce
the
sound
by
buzzing
the
player's
lips
inside
a
cup
-
shaped
____________________
.
Percussion
family
is
the
biggest
of
the
three
.
It
is
divided
into
two
groups
.
If
they
can
produce
the
sounds
of
a
note
,
they
are
____________________
instruments
.
Otherwise
,
that
is
,
they
produce
noises
,
they
are
____________________
.
