In the area below an interval is shown. Tell which interval you think this is by pressing the corresponding number key. A prime is 1 and the octave is 8. When your answer is incorrect, you will see the interval you chose next to the original. If your answer is correct, you will get a new interval.
The purpose of this exercise is to learn to read the interval by sight instead of calculating the distance by
counting the steps.
You therefore have a time frame of 3 seconds to answer before a new interval is shown.
There are different levels which increase in difficulty. The most difficult levels will also decrease the size of the time frame.
You can switch levels at any moment.