现代钢琴性能优良，音乐表现力强，应该说这是200多年来众多钢琴制作师辛勤努力和智慧的结晶。然而，就目前的钢琴产品而言，并非完美无缺，仍需要不断改进、完善和提高。以下仅举数例，供厂家参考。1．谱架问题立式钢琴的谱架装在琴盖内面中；司位置，依靠铰链用时可张开、用 Modern piano performance is excellent, strong performance of music, it should be said that this is the crystallization of hard work and wisdom of many piano makers over 200 years. However, as far as the current piano products are concerned, they are not perfect and still need continuous improvement, improvement and enhancement. The following is just a few examples for manufacturers reference. 1. Music stand problem Upright piano music box installed in the lid inside; Secretary position, relying on the hinge can be used when open