A music key signature flash card app designed for music teachers to use with their students. Users can select either a Major or Minor key signature quiz. This teacher edition records the students time and accuracy each time the student completes the quiz. In addition, the teacher is able to view their students' top times in a single list and then select an individual student to see the detailed history of their test scores. Note: There is also a student edition available that students can use to practice on their own.