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Harmony Director 

HD-

300

 Feature Basics

This at-a-glance introduction shows how the HD-300 features can be used in various practice situations, and provides basic instructions.

Creating beautiful unisons and harmonies

Creating beautiful unisons and harmonies

Keeping tempo and rhythm

Keeping tempo and rhythm

Imagining correct pitch

Confirming complex rhythms

Demonstrating tempo and beat

Creating harmonies

Sharing performances

HD-300 function

HD Assistant app function

Manual Development Group

© 2020 Yamaha Corporation

Published 07/2021 MWES-B0

VFJ5750

Imagining correct pitch

Turn the                            function on, and then play 

in the direction of the HD-300 to have it play the 

correct pitch for the nearest reference note for a 

specific period of time.
This lets you practice imagining and matching the 

pitch as you perform.

Effectively practicing basic 
techniques

In the                            mode, you can play back the 

main practice pieces in the “JBC Band Method” 

library.
This can be used to automate the accompaniment, 

allowing the instructor to concentrate on listening to 

the student’s performance when used by the 

instructor. It also helps students practice 

independently on their own when they use it.

Confirming complex rhythms

Using the metronome function deeper.
By using the                                          function, you 

can set and save an irregular meter or a frequently 

used tempo.

Using the                                 function of the app 

enables you to create a set of rhythms of up to 

2 measures by note input, and to play it on the 

HD-300.

Sharing performances

Your performance can be recorded to a USB flash drive.
The                 button is used for normal recording.
While the                                              function is on, 

you can record a performance including even up to 

10 seconds before you start the recording.

Owner’s Manual

 (page 29)

Owner’s Manual

 (page 30)

Tuning

Use the                            buttons and the dial to select 

the desired Voice.
Use the                            function to continue playing 

notes even after you’ve released your finger from the 

keyboard.
Use the                            slider to change the octave of 

the keyboard sound.

Demonstrating tempo and beat

Using the metronome in its simple mode.

Use the [START/STOP] button to start/stop 

playback.

Owner’s Manual

 (pages 18-19)

Owner’s Manual

 (pages 26-28)

Owner’s Manual

 (pages 22-23)

Owner’s Manual

 (pages 22, 24)

Developing one’s sense of 
rhythm

By switching the rhythm playback mode to the 

                              mode from the metronome, you 

can play back various popular rhythms.
Rhythm styles include such as march, swing and 

samba. Practicing while playing back these rhythms 

helps develop a sense of rhythm that matches the 

piece.

Owner’s Manual

 (pages 22, 25)

Creating harmonies

Select the pure                                  and play a chord 

so that the root key is automatically detected and a 

pure-tempered chord sound is produced. 
The                            buttons are useful when playing 

the keyboard, while using a musical score written for 

the transposing instrument.

Using                            on the app enables you to hear 

minutely out-of-tune sounds (interference beats), or 

to sense changes in the sound of chords when the 

volume balance changes.
                                function enables you to determine 

the chord from a performance, and play sounds 

using an onscreen keyboard.                   function also 

enables you to verify pitch on the app.

Owner’s Manual

 (pages 18-21)

Use Guide

A. Training one’s ability for listening and matching pitch

Use Guide

B. Training one’s ability to recognize areas needing improvement in a performance

Effectively practicing 

basic techniques

Developing one’s 

sense of rhythm

: Changes the time signature.
: Changes the tempo.

: The sliders adjust the volume of 

each note type of the metronome.

Tuning

EN

VOICE

HOLD

OCTAVE

SOUND BACK

VOICE

HOLD

OCTAVE

SOUND BACK

REC

TIME SHIFT RECORDING

TEMPERAMENT TRANSPOSE

Chord Detector

Demonstrate

Tuner

BEAT

TEMPO/TAP

METRONOME VOL

BEAT•TEMPO MEMORY

Rhythm Assistant

RHYTHM STYLE

TRAINING

BEAT

TEMPO/TAP

METRONOME VOL

Demonstrate

Chord Detector

Tuner

TEMPERAMENT

TRANSPOSE

REC

TIME SHIFT RECORDING

TRAINING

BEAT•TEMPO MEMORY

Rhythm Assistant

RHYTHM STYLE

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