SLIDE TONE / COPPER BRASS / For French Horn - 3mm NachtmusiK BRASS FACTORY original, handmade acoustic adjustment ring for trumpets. Mainly provides changes to the sound and playing feel. Increases resonance, allowing the sound to carry to the back of the hall. Improves the instrument's response, allowing for fine control. Improves the feel of high notes, and is effective in expanding the range and reducing misnotes. This is a new type of acoustic adjustment ring that is not a "mouthpiece ring" that fits on the mouthpiece, but is attached to the slide parts of the main tube, etc. Used by Emmanuel Urso, principal solo horn player of the Milan Scala Orchestra. We are publishing a message from Mr. Urso on Instagram. https://www.instagram.com/reel/DFK9CM9s1dm/?utm_source=ig_web_copy_link&igsh=MzRlODBiNWFlZA== Many accessories are supervised by professionals, but SLIDE TONE is a product that studies the resonance of the material from a scientific perspective, rather than the professional's sense. According to customer surveys, 95% of customers answered that they felt a change. For more details, please visit https://nachtmusik.theshop.jp/ *Please understand that the effects may vary from person to person due to the nature of the product.