☆ M Bore ☆ Reverse Tuning Slide ☆ Silky Type At our workshop, which has a proven track record as a trumpet customization atelier, we have upgraded the YAMAHA college model trumpet YTR-233 to be seamlessly integrated into modern band ensembles. We have rebuilt the basic design of this instrument based on the concept of "Schilke," a top trumpet manufacturer, and incorporated specifications similar to the Silky clone instrument (pro model YTR-636) of the time. We have fully upgraded the M bore instrument, which is now difficult to obtain. It is also ideal for leading in brass bands and big bands. You can obtain the reverse tuning specification, which is often found in high-end instruments, at a very reasonable price. ★ Customization Points ◉ By rebuilding the tuning slide to reverse, we have achieved the smooth and light playing feel unique to the Silky type, reducing stress even during long hours of playing. We have also paid close attention to processing accuracy, ensuring compatibility with the tuning slide of the high-end model "pro model YTR-636." ◉ The 1st slide has been rebuilt to reverse, and a ring-type thumb hook (YAMAHA genuine parts) has been installed. This allows for pitch control during performance and allows you to play down to pedal "F." You can hold the instrument without gripping the valve casing, so the instrument's vibration is not suppressed. ◉ By replacing the movable type finger ring of the 3rd slide with a fixed type (YAMAHA genuine parts) for high-end models, we have eliminated the image of school equipment and achieved tight operability. ★ Condition The lacquer remains at approximately 95% or more. There is a slight dent in the bell crook, but it does not affect playing. The moving parts are in player's condition. ★ Contents Body, mouthpiece, hard case ★ Options Without mouthpiece, 500 yen discount Without case, 1,500 yen discount ★ Instrument Trading Trumpet Custom Workshop This is not a used resale item. By rebuilding (reconstructing) rare YAMAHA instruments from the Silky collaboration period, we offer trumpets upgraded as Silky type instruments.