At our workshop, well-known for customizing trumpets, we have rebuilt a YAMAHA college model trumpet, the YTR-234, to function seamlessly within modern band ensembles. The YTR-234, designed by Schilke, was introduced in 1972. This early model, in particular, shared many parts with YAMAHA's high-end instruments, making it a high-quality model. While it was a standard specification at the time, it lacked certain features necessary for modern brass bands and big band ensembles. We have implemented essential upgrades at our workshop to transform it into a modern trumpet, allowing it to be used without hesitation in contemporary band ensembles. Although it is the same grade as the current YTR-2330, this instrument achieves a playing feel only found in high-end models thanks to the customization of a reverse tuning slide. To achieve the original Schilke-type sound, our workshop has performed the following customizations: Unfortunately, Yamaha currently only offers the Schilke type in the YTR-8310Z, making our workshop's customized trumpets a valuable option. ★Customization Details ◉ By rebuilding the tuning slide to a reverse design, we have achieved the Schilke style. We have also paid close attention to processing accuracy, ensuring compatibility with the tuning slides of professional models, which are higher-grade instruments. ◉ The 1st slide has been rebuilt to a reverse design, and a thumb hook has been installed. This is an essential feature in modern ensembles. By adjusting the 1st and 3rd slides, it is possible to produce a pedal "F". ◉ The movable finger ring on the 3rd slide has been replaced with a fixed-type ring from a higher-grade instrument. ★Condition ◉ Good condition with over 80% lacquer remaining, but there are some noticeable areas of deterioration. ◉ No noticeable dents; slides and piston valves have been adjusted. No missing parts, and it functions normally. ★Items Included ◉ Trumpet ◉ Mouthpiece ◉ Semi-hard case (new) ★Options ◉ If you do not need the case: -¥2,500 ◉ Add a brace to the tuning slide: +¥2,000 Please indicate your preference in the comments section.