めろでぃナビ is a free app provided by Yamaha Music Foundation for students enrolled in Yamaha Music Schools and Yamaha Adult Music Lessons. By scanning the QR code printed on lesson materials or entering the song code, users can easily listen to reference performances.

Key Features of めろでぃナビ:

1. "Reference Performance Playback through QR Code Scanning": Simply use your smartphone's camera to scan the QR code printed on Yamaha Music School and Yamaha Adult Music Lesson materials to automatically play the reference performance.

2. "Cue Slider for Intuitive Position Adjustment": Use the cue slider to easily adjust the playback position.

3. "Rehearsal Mark for Preparatory Listening and Repeat Playback": Use the rehearsal mark to prepare and repeat playback.

4. "Playback at Slower Tempo": Users can play the music at a slower tempo.

5. "Playback History": The app records up to 10 previously played songs, allowing users to access them again.

Please note that めろでぃナビ is exclusively available to Yamaha Music School and Yamaha Adult Music Lesson students. It requires the QR code or song code printed on the lesson materials.

※ QR Code is a registered trademark of DENSO WAVE INC.