You needed brighter high notes, and stronger mids. We improved the YUE-Shan (usually S shaped) to get the tones that our performers have requested for. With a Travel Sized Guzheng, you are free to go to almost wherever the gigs take you! At 125cm (4' 1") , its small enough to fit into the back seat of any car. We ensured that the sound is good enough for most gigs, or a classroom situation, where you, the teacher needs to fit 4,5 or even more guzhengs into the same classroom