Unlike usual karaoke program which just show your rate at the end of song. Singing-Tutor shows your rate during singing, also it visually shows your voice-line and song melody notes so you can immediately correct your voice. Singing Tutor idea is simple. Each note has a defined pitch frequency. The higher note has the higher frequency and vise versa. Singing Tutor allows to measure the pitch frequency of the voice or music, with high...