Which one is better, beech or black walnut?

Black walnut finger piano.

1. Workmanship. The black walnut finger piano has undergone repeated processing and is very exquisite and luxurious in workmanship, while the beech finger piano has only undergone simple processing and is relatively rough in workmanship.

2. Quality. High-quality materials were used during the production of this product, and the quality is very good, so it is better, while low-quality materials were used during the production of this product and the quality is poor, so it is not good.