ent, and
controls the heaviest reeds in the bass except the Bourdon or Sub
Bass, if the organ should have either of these. In examining an organ,
close all stops but the Diapason, for instance, then successively
press every key in the two bass octaves.

Now if, for instance, a key is found silent, that is, just an octave
from the lowest tone, by counting the keys from the lowest tone, you
will find the silent key is number thirteen. Look into the organ, find
the mute that is up by reason of this Diapason stop's being pulled,
and count the reeds from the lowest to the thirteenth; pull the reed
and you will find it obstructed or perhaps broken. Most organs have a
Dulciana stop in the treble which corresponds with the Diapason in the
bass. Test the reeds of this set just as you did those of the
Diapason. Go over each set of reeds in like manner. Broken reeds
should be sent to the factory where the organ was built. The
manufacturers will send a new one, often without cost.

Stops are sometimes found disconnected from the mutes, which deprives
the player of the use of certain sets of reeds, and while it is a
small matter to connect them, it adds much to the improvement
imparted to the instrument by the tuner. After disconnecting the stops
for any purpose, always be sure you connect them properly before
leaving your work.

STICKING KEYS.

The key itself is subject to many of the same faults as is that of the
piano. It may bind in the guide pin or warp so as to cause it to
stick, or it may stick from some substance between the keys. Sometimes
the front board is so near the front of the keys that when the latter
are depressed they stick against it. A screw is generally found in the
center, the head of which comes against the front board and holds it
out. If the board is too near give the screw a turn or two back. If
there is no screw, place a piece of card against the board and the
case at the ends. The end keys sometimes stick against the blocks at
the ends of the key-board. Scrape the block or key where it sticks. A
key may stay down because of the cedar pin, sometimes called the
tracker pin or pitman, sticking in the hole. Take out the key-board
which is held by a screw at each end, sometimes by another in the
middle; in which case a key or two must be removed to get at it. To
remove a key, take off the strip at the back of the keys, held in
place by small screws, and the key may be lifted up. Now, finding the
sticki