因为我看不见你们，没办法校正你们的持弓姿式。所以想出一招可固定手形，放乒乓球！保持圆型的手型，发音也将会是圆的。音质会大大提高。因圆型符合力学原理。压力平均。 应用：将食指及拇指形成一个环状。将弓放入圆环内，再放入乒乓球------这就是标准的俄罗斯学派之持弓法！见图4。 运弓：图1到图3。上半弓用下臂。下半弓用上臂。上半弓手臂向内做逆时针方向转动。以一指压到弦上。见图9和图10。弓的压力是弓毛刚刚要碰到弓杆。 手臂，弓杆，弦永远保持水平线。象高速公路一样，这就俄罗斯学派之弓法 发音的密秘！见图带玩具汽车的照片！要领是不要端肩。要放在桌子上的感觉。水平的放到弦上。这样才能发挥自重及地心吸引力的本身压力！ 最后一张图是最常见一些只知道皮毛的老师一代传一代的坏毛病。我叫他鸡爪抓弓法！最要不得。对发音百害无一利！和饭馆里的“凤爪”一样。 我俄罗斯学派的老师们是用尺子将我的持弓卡出来的。我练时老师用一枚两欧圆的硬币放在我手碗与手臂之间。三个月下来练到任何弓法硬币不掉，长在我下臂上。才算成功！ 大家如不怕苦也可试试。保正发音越来越好！我老师Felix Andrievsky告诉我他只有几个学生做到家了。：我，Tretyakov,Spivakov,Boris Belkin!所以你们看图学我基本不会走样！我24岁时经常给我的俄罗斯老师们在大师班上做摸特儿。 祝大家玩的开心点！九龙池可不许将硬币用胶水粘在手碗上啊！

再在自己脸上帖金主要是鼓励大家克服困难，我教的真是快失传的俄罗斯学派，因给我写鉴定的这些名师都已不在人间。很多前苏联新独奏家来荷兰找我上课。学回他们的真传。 KAM LUNG CHENG / RECOMMENDATIONS “I was deeply impressed by the sensibility of his interpretation” Lord Yehudi Menuhin “I see Kam Lung as a very gifted musician, with virtuoso qualities, a beautiful sound and exellent musical memory” Felix Andrievsky, Prof. of the Royal Academy of Music, London “I found Mr.Cheng not only an extremely inspirational performer, but an exceptional person as well” Kent Nagano, Music Director of the Halle Orchestra Manchester & l’Orchestre de l’Opéra de Lyon “He performs always with a lyric, lively artistic temperament, a beautiful sound and with brilliant virtuosity and a profound understanding of the music he performs” Viktor Liberman, Concertmaster of the Leningrad Philharmonic Orchestra & Royal Concertgebouw Orchestra Amsterdam, Prof. Conservatorium Utrecht “His interpretations are distinguished by a poetical sense of style, complete command of his instrument, and a fine musical taste. I very much like to recommend him to all concert-managers that are interested in collaborating with him” Alexander Barantschik, Concertmaster of the London Symphony Orchestra & Radio Philharmonic Orchestra Hilversum “I see him as an artist with unbelievable brilliant virtuoso technique and a deep sense of musicality. In his performing he shows deep emotion and artistic temperament. With his interesting interpretations, beautiful sound and the qualities I mentioned above he is able to catch the audience and create a very interesting atmosphere” “In teaching he is able to explain everything he does very clearly, he has a feeling for explaining music and the knowledge to solve technical problems” Philippe Hirschhorn, Prof. Conservatorium Utrecht