This application program is musical sensitivity training.
It was made based on the training that I had done in the past.
-- Application program explanation --
The sound is a piano sound.
STEP1:
Answer the question what single sound rang by one octave.
If answer mode is turned off, you can confirm the sound.
STEP2:
Answer the question what single sound rang by three octaves.
If answer mode is turned off, you can confirm the sound.
But the sound rings by middle of three octaves (same octave of STEP1),
even if the sound of question is in low octave.
The reason is that it is better practice.
-- Application program Concept --
Simple and Low-Priced !!