TLA CTS-5-C, Manual

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If necessary, adjust the CTS-5-C to the correct tone, by tapping the keys "<"
or ">", until the stroboscopic display is standing still, while the tone is being played. Only then
the CTS-5 is adjusted to the correct value.
You may now read the measured standard pitch on the LC-Display.
2.4 Measuring a tone's cent deviation
The unit of measure CENT is used in accoustics for the deviation of a tone from a basic
frequency. A cent is about one hundredths of a semi-tone step. The exact value is described in
Part 3 of these Operating Instructions.
Please use mode number 3 "CENT MEAS" for cent measuring. Its procedure is the same as
that for measuring the standard pitch.
The cent-adjustment of the CTS-5 always relates to the previously adjusted tone and concert
pitch.
Remark to "CENT-MEAS" mode: To adjust the note without leaving this mode, operate like this:
Keep "S" pressed and shortly tap „E“. From now on, you can adjust the note with " < >".
Tap "E". From now on, you adjust the cents again with "< >"
2.5 Piano tuning
First things first: We cannot overemphasize the fact that piano tuning requires experience. If it
is done without the necessary knowledge and skills, the piano may be irreparably damaged. In
one tuning, a piano should never be raised or lowered by more than 30 cent.
When tuning pianos and grand pianos, the stretching of tune has to be considered for various
reasons, i.e. that in deviation from the standard tune, high tones have to be tuned higher, and
bass tones lower. We will discuss this further in Part 3 of the Operating Instructions. The Tuning
Set CTS-5-C may be adjusted so that, based on stretching diagrams, which are incorporated in
the CTS-5-C program, these deviations or stretchings are automatically considered.
Several stretchings are available in the Tuning Set. Four are permanently programmed. The
stretching number 5 and number 6 you can enter yourself, using program 6 (MEMORY) and
program 7 (PIANYZER) You may find the diagrams of the four permanently programmed
stretchings in Part 3 of the operating instructions.
The choice of the optimal stretching depends on various parameters of the instrument to be
tuned. Another important consideration is the preference of the musician.
The four built-in stretchings are the result of trials, during which various pianos were tuned by
ear, and subsequently measured. The stretching most suitable for your requirement must be
tried by you first, considering that the weak and middle stretching is more suitable for pianos
with large measure (concert grand piano). We recommend that in your first attempts you try the
Stretching Number 3 (MODERATE). For this, the Tuning Set is used as follows:
Turn on the device
Tap ">" 4 times
Tap "E"
NO STRETCHING
<5> Number 00
<5> STRETCHING ->
<1> TUNE ->