A Valuable Tool for Music Educators A valuable tool for music educators, the Yamaha HD-300 Harmony Director instructional keyboard offers powerful ear training with dynamic features that make intonation and rhythmic learning more effective and engaging for your students. The HD-300's straightforward controls make ensemble rehearsal sessions easier and more efficient, while its recording function gives students immediate feedback to improve their performances. As a band director, Yamaha's HD-300 Assistant iOS companion app makes your job easier by allowing you to use the HD-300 from anywhere in the classroom, while expanding the keyboard's functionality. The app also functions as a standalone tuner. The HD-300 comes loaded with 167 musical examples from the Japan Band Clinic Band Method book (available separately) so your students can hear chord progressions, rhythmic exercises, and more to help them play in time and on pitch, while fostering their ability to contextualize their proper place in