ロイス・クルーガー氏
I reassured that what counts most is how to present yourself, it's not the matter of contents in a way.
After listening to his lecture about 1 hour , I thought this way.
His eye's direction, his vivid gestures, his tone of voices, his frequent movement, and his interval, it's just like symphony so to speak.
All of these were well harmonized, strong and weak accents are melodious to keep audiences attentions.
He is a conductor as well as a violinist.
2 examples he had consulted were shown to us.