Yamaha SY77 Operating Manual page 119

Pressing F1 (Sel) will move the cursor to Micro
Tuning Select. Pressing F2-F5 will move the cur-
sor to Element 1-4.
Remarks: As with Pan data, Micro Tuning data is
not part of the voice. This Micro Tuning Select
setting merely specifies which micro tuning will
be used.
The sixty four micro tunings preset inside
the SY77 are as follows.
01 Equal temperament: The "compromise"
tuning used for most of the last 200 years of
Western music, and found on most electronic
keyboards. Each half step is exactly 1/12th of an
octave, and music can be played in any key with
equal ease. However, none of the intervals are
perfectly in tune.
02-13 Pure major (C...B): This tuning is
designed so that most of the intervals
(especially the major third and perfect fifth) in
the major scale are pure. This means that other
intervals will be correspondingly out of tune.
You need to specify the key (C...B) you will be
playing in.
14-25 Pure minor (A...G#): The same as Pure
Major, but designed for the minor scale.
26-37 Mean tone (C...B): This is an adjust-
ment of the Pure and Pythagorean tunings. The
interval between the root and fifth is tuned
slightly flat, so that the interval between the
root and second degree is exactly halfway be-
tween a major and minor pure second; i.e., an
average or "mean".
38-49 Pythagorean (C...B): This scale is
derived by tuning pure perfect fifths upward from
the root. This causes the octave to be flat, so
one of the fourths is mistuned to compensate.
(In the key of C, the Ab — Eb interval.)
50 Werckmeister: Andreas Werckmeister, a
contemporary of Bach, designed this tuning so
that keyboard instruments could be played in
any key. Each key has a unique character.
51 Kirnberger: Johan Philipp Kimberber was
also concerned with tempering the scale to allow
performances in any key.
52 Vallotti & Young: Francescantonio Vallotti
and Thomas Young (both mid-1700s) devised
this adjustment to the Pythagorean tuning in
which the first six fifths are lower by the same
amount.
53 1/4 shifted equal: This is the normal equal
tempered scale shifted up 50 cents.
54 1/4 tone: Twenty-four equally spaced notes
per octave. (Play twenty-four notes to move one
octave.)
55 1/8 tone: Forty-eight equally spaced notes
per octave. (Play forty-eight notes to move one
octave.)
56 JustAdjust: This is a special tuning used in
preset voice P1-B05 Chorus Pno to make fine
adjustments in the pitch of the AWM waveform.
57 Big Chord: The pitch is adjusted down one
octave for every 8 half notes, allowing chords to
be played anywhere without becoming overly
heavy. This microtuning is taken advantage of in
preset voice P1-B06 BigChordEP.
58 Log Equal: A variation of conventional equal
temperament.
59 1/4 Tonelo: The same as micro tuning 54,
but lower in pitch.
60 Harmonic A: The white keys will play the
harmonic series beginning on A, and the black
keys will play the harmonic series beginning on
E.
61 Reverse: The conventional equal tempered
scale is inverted.
62 Far East: The black keys and white keys
will each play a different eastern scale.
63 Blue: The white keys will play the blues
scale. The black keys add a blue flavor
64 Question-1: Play the white keys consecu-
tively upwards starting from C2.
Play the black keys consecutively upwards
starting from C#1.
Editing: To edit the currently selected Internal micro
tuning, press F8 (Edit). Preset or Card micro
tunings cannot be edited. If you want to edit a
preset or card micro tuning, you must first copy it
to an internal micro tuning memory.
VOICE EDIT MODE
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