Cleaning brass instruments is essential for maintaining their sound quality and longevity. Regular cleaning helps remove dirt, oil, and moisture that can accumulate from playing. A simple routine includes wiping the exterior with a soft cloth and using a cleaning snake or brush to clear the inside tubing. For deeper cleaning, disassemble the instrument and soak the parts in warm, soapy water. Rinse thoroughly and dry completely before reassembling. Additionally, applying valve oil and slide grease can help keep moving parts functioning smoothly. Regular maintenance ensures that trumpets, trombones, and other brass instruments perform at their best.