User Manual
Table Of Contents
- PRECAUTIONS
- NOTICE
- Information
- Introduction
- Included Accessories
- About this Manual
- Contents
- Component Names
- Setting Up
- Screen Configuration and Basic Operation
- Producing Reference Tones for Playing Harmony (Voice, Temperament, Hold, Octave, Transpose)
- Demonstrating Tempo and Rhythm (Metronome, Rhythm Style)
- Sharing Performances (Recording/Playback)
- Enhancing Basic Practice (Sound Back, Training)
- Restoring Factory Settings
- Advanced Settings (Settings)
- Connecting External Devices
- Connecting Amplifiers or Other Equipment (OUTPUT [L/MONO], [R] jacks)
- Connecting a Microphone (MIC [INPUT] jack, MIC [GAIN] knob)
- Using a Pedal ([FOOT PEDAL] jack)
- Connecting a USB Flash Drive (USB [TO DEVICE] terminal)
- Connecting to a Computer (USB [TO HOST] terminal)
- Using the “HD-300 Assistant” iPhone/iPad App (Bluetooth)
- Listening on the HD-300 to Audio Playback from an iPhone/ iPad (Bluetooth)
- Appendix
Appendix
HD-300 Owner’s Manual
39
Equal and Pure Temperaments
Preset Temperaments Cent List (for C MAJOR/a minor)
Other Temperaments Cent List (for reference)
The following temperaments can be set in the individual temperament mode.
Temperaments
Temperament Description
Equal Temperament that divides one octave into 12 equal steps. The frequency ratio between neighboring notes is
(= 1.0594631).
Pure (Major) The tuning preserves the pure mathematical intervals of the major scale, especially for the triad chords (in case of
the “C Major”; CEG, FAC, and GBD). Since this tuning includes the pure perfect 5th and pure major 3rd, both large
and small interval whole tones, and chromatic scale semi-tones, changing keys requires changing the pitch ratio of
every note in the scale, making it impractical for keyboard or fretted instruments.
Pure (minor) Like the pure major, this tuning preserves the pure mathematical intervals of the minor scale (in case of “a minor”;
ACE, DFA, EGB). Changing keys also requires changing the pitch of every note in the scale, making it impractical
for keyboard or fretted instruments.
Display Temper-
ament
Type
Difference from the equal temperament (cent)
C D
b
D E
b
E F F
b
G A
b
A B
b
B
Equal
Equal 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Pure C
Pure
Major (C)
0.0 -29.3 3.9 15.6 -13.7 -2.0 -31.3 2.0 -27.4 -15.6 17.6 -11.7
Pure a
Pure
Minor (a)
15.6 -13.7 -2.0 31.3 2.0 13.7 -15.6 17.6 -11.7 0.0 33.2 3.9
Temperament Difference from the equal temperament (cent): When the root key is C
C D
b
D E
b
E F F
b
G A
b
A B
b
B
Meantone
0 -24.0 -6.8 10.3 -13.7 3.4 -20.5 -3.4 -27.4 -10.3 6.8 -17.1
Pythagoras
0 13.7 3.9 -5.9 7.8 -2.0 11.7 2 15.6 5.9 -3.9 9.8
Werkmeister I 3rd
Variant
0 -9.8 -7.8 -5.9 -9.8 -2.0 -11.7 -3.9 -7.8 -11.7 -3.9 -7.8
Kirnberger III
0 -9.8 -6.8 -5.9 -13.7 -2.0 -9.8 -3.4 -7.8 -10.3 -3.9 -11.7
Valloti & Young
0 -9.8 -3.9 -5.9 -7.8 -2.0 -11.7 -2.0 -7.8 -5.9 -3.9 -9.8
2
12