Key Signature Pro

Key Signature Pro helps you easily
memorize all the key signatures
(both major and minor keys) and
highly recommended for both private
use and academic use.

Key Signature Pro consists of Chart mode
and Quiz mode.

Press the MUshroom THeory logo to proceed.

In the Chart mode,
Press any of the key signature buttons
to show the key.
Choose which keys to show and hide
by pressing the major,
minor,major＋minor button.

Press the Quiz button to show the Quiz mode.

In the Quiz mode,
Random key appears on the screen.

Background flashes red and vibrates when
the wrong key signature button is pressed.
Then, the key turns red and shows
the same key again.

Background flashes blue and shows
the next random key when the right
key signature button is pressed.
Choose which keys to show by pressing
the major,minor,major＋minor button.