What it is:
The swab is a
synthetic material attached to the end of a
nylon cord that
has been weighted on the other end.
What it does:
saliva and food particles left in the leadpipe after
playing. Using the swab daily will help preserve the
trumpet and keep it playing consistent day to day.
How it works:
Any saliva or food particles in the horn will alter
the shape of the air column, thus affecting sound,
intonation and back pressure. If left in place,
these food particles will continue to absorb the
acids in saliva and de-zincify the brass. This causes a cavity to form in the
brass, often presenting itself as what appears to
be pitting or bad plating on the exterior of the
horn. Using the swab after every playing session
will prevent this from occurring.