HD-300 Assistant
Yamaha Corporation Music iPhoneiPadiPod touch
HD-300 Assistant is a free Music app for iPhone and iPad by Yamaha Corporation. Rated 5.0/5 from 3 ratings. Requires iOS 13.0. Updated February 4, 2026.
- Rating
- 5.0
- 3 ratings
- Price
- Free
- on the App Store
- Size
- 76 MB
- Age 4+
- Updated
- Feb 4
- 2026 · v2.4.0
Screenshots
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.
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DropSpin Metronome
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Fingering
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Fingering Charts By Tremolo
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Fingering & Tuning Charts
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Pyware 3D Mobile Editor
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PracticePlay
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| HD-300 Assistant | 5.0 / 5 (3 ratings) | Free | February 4, 2026 | |
| DropSpin Metronome | 4.8 / 5 (66) | Free | Oct 20, 2026 | Compare |
| Fingering | 4.8 / 5 (157) | 4.99 USD | Jun 18, 2026 | Compare |
| Fingering Charts By Tremolo | 4.7 / 5 (132) | Free | Nov 15, 2025 | Compare |
| Fingering & Tuning Charts | – | 19.99 USD | Jun 8, 2026 | Compare |
| Pyware 3D Mobile Editor | 2.1 / 5 (38) | Free | Nov 25, 2023 | Compare |
| PracticePlay | 5.0 / 5 (23) | Free | Sep 20, 2026 | Compare |
Compare HD-300 Assistant with the top alternatives: ratings, updates, ASO score and keyword gaps →