1. Free National Anthems: China, Taiwan, Japan, British, Germany and a quasi national anthem of USA.
2. Playable national anthem scores and lyrics, not dumb PDF.
3. Auto scrolling in playing or manual scrolling, easy to see scores and lyrics.
4. Pointer on lyrics like TV karaoke plus pitch, speed, instrument adjustable abilities.
5. Smart zoom function to change size of scores and lyrics.
6. Teach people to sing national anthem correctly.