# HD-300 Assistant

> Music

Canonical page: [https://chrome-stats.com/d/id1526764718](https://chrome-stats.com/d/id1526764718)

## Overview

- **ID:** `id1526764718`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Yamaha Corporation
- **Category:** Music
- **Rating:** 5.00 / 5 (3 ratings)
- **Version:** 2.4.0
- **Last updated:** 2026-02-04
- **First published:** 2021-03-15
- **Size:** 76 MB
- **Data as of:** 2026-09-23
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/hd-300-assistant/id1526764718)
- **Privacy policy:** [https://www.yamaha.com/en/apps\_docs/apps\_dmi/dmi\_PP\_general.html](https://www.yamaha.com/en/apps_docs/apps_dmi/dmi_PP_general.html)

## Description

* The device on which this application is installed must be connected to the HD-300 via Bluetooth®. The application does not produce sound independently.

The HD-300 Assistant application allows an instructor to remotely control the HD-300 and provide intuitive guidance to students.

≪ Functions ≫

• HD Control
In addition to keyboard and metronome operation, the app allows remote control of temperament and transposition.

• Beat, Tempo Setting
Irregular meter and tempos can easily be created, saved, and played back.

• Individual Volume and Pitch
Fine adjustment is available for individual volumes and pitches.

• Demonstrate Mode
The interference beat that occurs when notes are slightly out of tune can be recreated, and the volumes of harmony notes can be adjusted to give students a feel for appropriate pitch and volume.

• Chord Detector
Chords can be detected and named based on a group of played notes.

• Tuner
The tuner provides a convenient means to check pitch. The tuner’s base pitch is adjustable.

・ Rhythm Assistant
The app can play the same rhythm as musical score.

## Rankings

- #541,702 — Overall

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Source: [Chrome-Stats](https://chrome-stats.com/d/id1526764718)