Basic services: tuning, adjusting reed gaps, slider cleaning and lubricating, and a thorough cleaning of the entire instrument.

For more complicated issues, such as deformation or unexplained air leaks, feel free to reach out for a detailed discussion about repair options. Please note that I cannot provide an estimate upfront, as harmonica problems are often the result of multiple overlapping issues and typically can't be fixed by replacing just a single part.

The main components of a harmonica are metal, and prolonged exposure to saliva can cause oxidation. Without regular cleaning and maintenance, the parts will age more quickly. If the damage becomes too severe, repairs may no longer be possible, and the parts or even the entire harmonica may need to be replaced.

Therefore, it's important to wipe the harmonica after playing, store it in a well-ventilated area, and regularly clean the mouthpiece set. This helps maintain the instrument's condition and prolong its lifespan.

Yes, tuning is an essential skill for any harmonica player. You can refer to my videos for guidance on how to tune your harmonica—just pay close attention to the details.

In the beginning, it's a good idea to practice on an old harmonica. With a few tries, you'll discover the techniques that work best for you.

Reference video: [中 en cc] 半音階調音，用自己的 Laelaps64 完整教你如何調整半音階口琴音高！

The plastic valves can accumulate saliva residue over time due to prolonged contact with moisture. This buildup can lead to poor coverage and make the plates stick more easily. If you notice that the plates are sticking or discolouring, it’s time to replace them.

Under normal circumstances, I recommend replacing the entire set of plates. With regular practice, the wear on each valve tends to be fairly uniform (unless you're only playing specific notes). Therefore, it’s best to remove all the plates, clean the reed plates thoroughly, and then apply new plastic plates. This way, you can completely eliminate the accumulated saliva residue.

Reference video:[中 EN cc] // 實錄 // 膠片更換不再困擾，一步步教你換完整把半音階口琴的膠片！ 

Everyone has different playing habits and breath techniques (especially beginners, who may not have a fixed style), so making slight adjustments to the reed gap is essential to tailor the harmonica to your playing style.

A smaller reed gap provides better sensitivity and responsiveness but can limit airflow, leading to issues like reed to stuck. On the other hand, a larger reed gap allows for greater airflow but may sacrifice some sensitivity. Finding a balanced gap is essential for optimal performance and expression in your playing.

Certainly, in addition to the gap, how easy it is to play also relates to the curvature of the reeds. However, this is a more advanced topic. For now, harmonica players can focus on adjusting the reed gap to better suit their individual playing style.

Among harmonica materials, plastic is quite common. It's affordable and easy to maintain, making it suitable for beginners. However, the tone produced by plastic is somewhat generic and lacks distinct character. More advanced players often choose wood or metal materials, as the density of the wood and the type of metal can significantly affect sound quality. Ultimately, it comes down to personal preference when deciding on an upgrade.

Changing the body of the harmonica can also alter the playing experience. Beyond just material differences, the design often includes variations, such as the shape of the chambers. For instance, flat and slanted chambers provide different playing sensations and affect sound resonance in unique ways.