The tuning bellows is still the most commonly used tool for tuning all types of harmonica instruments. However, its use has several disadvantages: The tuning pressure, which influences the pitch, cannot be verified. As a result, tuning results vary from tuner to tuner. Working with the tuning bellows is tiring for the tuner and leads to back pain due to the stooped working posture.

The tuning table shown in the blueprints is the result of many years of development and testing. In 1992, the German Patent Office granted patent DE 4142035 for it.

Working at the tuning table allows the tuner to maintain a fatigue-free, seated working position. Tuning pressure can be monitored, working time is short, and tuning results are optimal. The tuning table has three working areas: the wind chest with interchangeable frame, the piccolo tuning attachment, and the key attachment. The reeds in the instrument are tuned on the interchangeable frame. The piccolo tuning attachment is used to tune the high, valveless voices on the removed soundpost. The key attachment is used to tune the notes on the soundposts removed from the instrument. The setup time for preparing the tuning table for each individual need is short.

The basic unit provides the user with a tool for tuning all instruments (treble and bass). Whether tuning a piano accordion, button accordion, bandoneon, or harmonica, using a removable frame adapted to the instrument's size will always produce the best tuning results. The piccolo tuning attachment and key attachments further simplify the process. When tuning the attachments, the reeds are freely accessible, eliminating the laborious and time-consuming task of turning the instrument over to check and correct the pitch. To achieve optimal tuning results that meet the highest standards, a final check should always be performed while the instrument is tuned on the removable frame. Experience has shown that only a few reeds require minor adjustments.

The tuning table is not available as a finished product. The ring binder contains all drawings, parts lists, construction specifications, and images for production. Customized modifications are easily implemented. The cost savings from DIY construction are significant. The material costs and the costs for the construction plans are extremely low compared to the usefulness of the tuning table.

Construction plans for the construction of a tuning table for tuning all types of harmonica instruments. 56 pages of text with functional and construction descriptions, parts lists, and 22 illustrations, 19 of which are in color. 49 drawings in the appendix. DIN A4 format, ring-stitched, 2nd edition 2003 (1st edition 2000), reprint 2025. New version of the out-of-print construction folder "Tuning Table for Harmonica Instruments."