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Screenshots

  • HD-300 Assistant screenshot 1
  • HD-300 Assistant screenshot 2
  • HD-300 Assistant screenshot 3
  • HD-300 Assistant screenshot 4

About HD-300 Assistant

* 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.

What’s new

Version 2.4.0 · Updated February 4, 2026

Fixed issues related to Bluetooth connectivity and GUI display.

App privacy

The developer, Yamaha Corporation, reported these privacy practices to Apple.

Data Not Collected

The developer does not collect any data from this app.

Alternatives to HD-300 Assistant

Looking for apps like HD-300 Assistant? Here are 6 similar apps on the App Store. The highest rated is PracticePlay (5.0/5), and 4 of the 6 are free to download.

HD-300 Assistant vs. alternatives
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HD-300 Assistant 5.0 / 5 (3 ratings) Free February 4, 2026
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Pyware 3D Mobile Editor 2.1 / 5 (38) Free Nov 25, 2023 Compare
PracticePlay 5.0 / 5 (23) Free Sep 20, 2026 Compare

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