page_title: Brass instrument valve
hierarchical_section_title: Brass instrument valve
caption_attribution_description: English: Valve keys on a brass wind instrument.
context_page_description: Brass instrument valves are valves used to change the length of tubing of a brass instrument allowing the player to reach the notes of various harmonic series. Each valve pressed diverts the air stream through additional tubing, individually or in conjunction with other valves. This lengthens the vibrating air column thus lowering the fundamental tone and associated harmonic series produced by the instrument.
  Valves in brass instruments require regular maintenance and lubrication to ensure fast and reliable movement.
context_section_description: Brass instrument valves are valves used to change the length of tubing of a brass instrument allowing the player to reach the notes of various harmonic series. Each valve pressed diverts the air stream through additional tubing, individually or in conjunction with other valves. This lengthens the vibrating air column thus lowering the fundamental tone and associated harmonic series produced by the instrument.
  Valves in brass instruments require regular maintenance and lubrication to ensure fast and reliable movement.
caption: Brass instrument piston valves
exif: {"Image Make": "Canon", "Image Model": "Canon EOS REBEL T4i", "Image Orientation": "Horizontal (normal)", "Image XResolution": "72", "Image YResolution": "72", "Image ResolutionUnit": "Pixels/Inch", "Image DateTime": "2014:03:22 13:21:23", "Image Artist": "David R Tribble", "Image YCbCrPositioning": "Co-sited", "Image Copyright": "Creative Commons attribution license", "Image ExifOffset": "360", "GPS GPSVersionID": "[2, 3, 0, 0]", "Image GPSInfo": "9034", "Thumbnail Compression": "JPEG (old-style)", "Thumbnail XResolution": "72", "Thumbnail YResolution": "72", "Thumbnail ResolutionUnit": "Pixels/Inch", "Thumbnail JPEGInterchangeFormat": "10924", "Thumbnail JPEGInterchangeFormatLength": "18058", "EXIF ExposureTime": "1/60", "EXIF FNumber": "28/5", "EXIF ExposureProgram": "Manual", "EXIF ISOSpeedRatings": "3200", "EXIF SensitivityType": "Recommended Exposure Index", "EXIF RecommendedExposureIndex": "3200", "EXIF ExifVersion": "0230", "EXIF DateTimeOriginal": "2014:03:22 13:21:23", "EXIF DateTimeDigitized": "2014:03:22 13:21:23", "EXIF ComponentsConfiguration": "YCbCr", "EXIF ShutterSpeedValue": "6", "EXIF ApertureValue": "5", "EXIF ExposureBiasValue": "0", "EXIF MeteringMode": "Pattern", "EXIF Flash": "Flash did not fire, compulsory flash mode", "EXIF FocalLength": "92", "EXIF SubSecTime": "00", "EXIF SubSecTimeOriginal": "00", "EXIF SubSecTimeDigitized": "00", "EXIF FlashPixVersion": "0100", "EXIF ColorSpace": "sRGB", "EXIF ExifImageWidth": "2592", "EXIF ExifImageLength": "1728", "Interoperability InteroperabilityIndex": "R98", "Interoperability InteroperabilityVersion": "[48, 49, 48, 48]", "EXIF InteroperabilityOffset": "8806", "EXIF FocalPlaneXResolution": "432000/149", "EXIF FocalPlaneYResolution": "576000/199", "EXIF FocalPlaneResolutionUnit": "2", "EXIF CustomRendered": "Normal", "EXIF ExposureMode": "Manual Exposure", "EXIF WhiteBalance": "Manual", "EXIF SceneCaptureType": "Standard", "EXIF CameraOwnerName": "", "EXIF BodySerialNumber": "042011006473", "EXIF LensSpecification": "[18, 270, 0, 0]", "EXIF LensModel": "18-270mm", "EXIF LensSerialNumber": "0000000000"}