The HD-300 is a powerful tool for music educators to more effectively teach intonation and rhythmic training to a musical ensemble.
The new Harmony Director HD-300 combines the HD-200s powerful ear ƚraining with
dynamic new educational features and a simplified user interface. The addition of a
mobile app that can act as a stand-alone tuner, as well as a hardware controller, makes
the new HD-300 a complete package thaƚ can noƚ only make a ƚeacher͛s job easier but also helps their students play "IN TUNE IN TONE IN TIME and aƚ ƚhe CORRECT VOLUME".