Since the death of Mr. Hirao and the closure of the music school, I have been studying using a karaoke app on my smartphone.
Each phrase is scored and displayed, and less than 80 points will be a red dot.
If you listen back to YouTube or a CD, compare it with your own song recorded, and sing it until the red dot disappears, it will take 5 or 6 hours depending on the song.
I've recorded 240 songs now, and this is the first time I've had a few 100s〜\(^or^)/
SNS