請問越古舊既豎琴(19世紀)，是否較新做既好和貴？(像小提琴一樣？)

Antique harps are extremely expensive, for the historical background.

It doesn't mean that they give better sound, their values come from the small amount of them.

A violin becomes more stable after years of vibration, but a harp may become unstable.

By the way, there are pedals under the harp for you to kick, such a tuning system was a cutting edge at that time, and this technique is more advanced these days, hence modern harps should sound better.

不一定，保養當然很重要！一般豎琴大約有五十年壽命，因為木質改變，所以保養不好的舊琴，在音質上當然不及新的那麼好．