Last version of Help, embeaded into Singing Tutor

Singing Tutor - is
With Singing Tutor you can
Configurate audio system
Plug the microphone.
Measure voice pitch
Sliding controls
Keyboard note colors
Note La Standard
Can not see white line
How to sing with mp3
Sing with midi
Select melody
Why using midi
Convert WAV/MP3 to MIDI
Red line separating the screen
Middle C