Total maintenance completed. YAMAHA YCL853Ⅱ Custom SEV Master Made of Grenadilla Serial number 018××× No history of cracks or repairs Accessories YAMAHA Custom Genuine Hard Case Custom genuine case cover with strap. Mouthpiece Vandoren B40 Lyre (new, unused) Ligature Bonade Pink Gold Reverse (new, unused) Cap RICOH KORG Ultra-Compact Tuner Metronome YCL 853Ⅱ Custom SEV Master YAMAHA clarinet B♭ professional model. YAMAHA's masterpiece, which began full-scale clarinet development in the 1970s. This top-of-the-line Custom series consists of three models: CS, CX, and SE. The SEV Master adopts a slightly thicker inner diameter than the Custom SE, and by using joint rings and a pear-shaped barrel, it enables a vivid response and a bright, rich, and soft sound, making it the pinnacle of the Custom series. Therefore, this SE series became very popular and established YAMAHA's reputation. About maintenance. 1. Body tone hole cleaning and oiling. 2. Total pad replacement. 3. Spring cork inspection and partial replacement. 4. Key distortion correction and polishing. 5. Ring height adjustment. 6. Pad gap adjustment. 7. F1 (upper and lower joint connection) adjustment. 8. Lower joint CB connection adjustment. 9. Overall balance adjustment, fine-tuning. 10. Full range test playing confirmation. Thoroughly tested through repeated playing. The adjustment is perfectly finished. There is no aging deterioration, and the sound is very excellent. The airflow is good, and the instrument is in the best condition. I think it's a great bargain. It can be said that it is a masterpiece itself. I am a clarinetist with 57 years of professional experience, but not a repairman. I learned本格的に from a Crampon technician when I was young. After retiring from the orchestra, I performed in New York and Berlin. Released three CDs and held many solo concerts. I have participated in countless recordings and broadcasts. The fourth corner of my clarinet life! I hope to be of help to enthusiasts. This Custom SEV Master YAMAHA's masterpiece. Please experience this brilliant sound. Thank you for viewing.