A 35-year-old male professional trombone player sought care for a chronic, nonproductive cough that had not remitted for approximately 15 years. He denied symptoms suggesting rhinitis or esophageal reflux and had not responded to gastric acid suppression, bronchodilators, corticosteroids, and treatment of rhinitis. There had been periods when the cough was more severe and associated with dyspnea and low-grade fever. Allergy testing was negative. There was no relevant past history, medication use, substance use, or exposure. The physical examination and a chest radiograph were normal, and pulmonary function tests, including a methacholine challenge test were normal. A high-resolution CT (HRCT) scan of the chest demonstrated a mosaic pattern on the expiratory views. Bronchoscopic examination revealed no endobronchial abnormalities. Subsequently, the patient noted that his symptoms improved significantly when he did not play his trombone for 2 weeks and that the periods of more severe symptoms had been when he was playing more than usual.