Learn to precisely tune pitches in randomly generated chords, scales and melodies, using equal temperament or just intonation! Hone your skills in the fully customizable Training Mode, or test yourself and go for a high score at one of three preset difficulty levels in Challenge Mode. Now with new features for use in the classroom!

Key features:
- 18 intervals, 9 chords, and 21 scales to tune in equal temperament or just intonation
- Fully customizable training mode which tracks your average error
- Challenge mode which generates 10 exercises at one of three preset difficulty levels and provides a total score out of 1000
- Timed exercise mode available for an extra challenge
- 36 high scores categorized by difficulty, exercise type, tuning system, and timed/free play mode
- 20 general settings including concert pitch, chord voicing and relative volumes, and a choice of three instrument samples
- Dozens of difficulty settings including full customization of the available scales, intervals, chords, and inversions
- Detailed About page describing the just intonation system and listing the ratios used
- Assignments: custom challenges which can be created by instructors and distributed to students
- Create a student or teacher account
- As a teacher, create classes and assignments and fully customize difficulty, number of exercises, number of attempts allowed and more
- As a student, join classes and complete assignments, submitting your best score
- Teachers can see each student's assignments, scores and total/average error