Brass River In 2005 the Nigerian Agip Oil Company (NAOC) was producing oil from 146 wells, and operated an export terminal at Brass River. Brass River Crude Oil is a sweet medium light crude. In the 17th and 18th centuries the Portuguese controlled the Brass River, which was closed to British traders and was an outlet for shipping slaves to the Americas. The town of Brass was inaccessible, reached only via the creeks. After 1807 the British began trying to suppress the slave trade. Don Pablo Frexas, in alliance with the chiefs of Brass and Bonny, was the main organizer of the
Types of trombone Types of trombone There are many different types of trombone. The most frequently encountered trombones today are the tenor and bass, though as with other Renaissance instruments such as the recorder, the trombone has been built in every size from piccolo to contrabass (pitch of brass instruments). See trombone for information about the instrument in general. The cimbasso is a brass instrument in the trombone family, with a sound ranging from warm and mellow to bright and menacing. It has three to six piston or rotary valves, a predominantly cylindrical bore, and in its modern incarnation is most often pitched