Pedal tones are special notes in the harmonic series of cylindrical-bore brass instruments. A pedal tone has the pitch of its harmonic series' fundamental tone. Its name comes from the pedal keyboard pedals of a pipe organ, which are used to play 16' and 32' sub-bass notes. Cylindrical brasses do not naturally vibrate at this frequency. A closed cylinder vibrates at only the odd members of its harmonic series.
March Shreveport Weather-Shreveport in March has recorded a record high temperature of 92 and, the average high is 70. Shreveport has experienced a record low temperature of 17 and, the typical low is 47. Shreveport averages 4.18 inches of precipitation in March.
Over the course of the year, the temperature in New Orleans typically varies from 47Â°F to 90Â°F and is rarely below 35Â°F or above 94Â°F. The hot season lasts for 134 days, from May 16 to September 27, with an average daily high temperature above 84Â°F.