The software has its occasional glitches (it is free after all) and does not allow for audio input like many paid doppelgangers, but this allows students to understand chord progressions, work out solo lines (and notate them using colorized notes for feedback), play along with auto-accompaniment and utilizes the brick chord layout for easy form understanding.
Excellent FREE ear-training software, as part of the GNU project. While there is little/no support from the website admin anymore, it provides a smooth and easy way to:
-Recognize, compare and sing intervals
-Identify & sing chords and specific chord tones
-Rhythmic and melodic dictation
(The "basics" of Auralia and other paid ear-training software, without the pretty interface).