These had one humbucker right alongside the neck pocket. Rickenbacker released the model 4000 bass which had a neck-through-body design in 1957. High end bass guitars which have unique designs, onboard electronics, and hand-finished bodies rose in the 1970 s. In the 1980 s, the headless bass wad developed by Ned Steinberger and the Guild Guitar Corporation introduced the use of silicone rubber strings. This accordion only had a keyboard operated by the left hand and the right hand only handles the bellows. The piano accordion which is widely used in Europe is said to be invented in 1822. Its popularity spread to Great Britain in 1831 and was renowned in The Times. The flutina by Jeune and concertina by Wheatstone are similar to each other in tone and construction but these seem to match the accordion invented by Demian. The harpsichord family There are various members of the large harpsichord family archicembalo, virginals, ottavino, clavicytherium, spinet, folding harpsichord, and the regular harpsichord. The archicembalo had a unique keyboard design and was for the tuning systems of the 16th century. The virginals is a simpler and smaller harpsichord with only a string for every note while the ottavino are similar to virginals but are at four foot pitch. It is the sole modern brass instrument in the orchestra which has the ability to play all of the chromatic scale s notes. Despite that, trombones were not included in the early orchestras because most composers and musicians thought these were solely suitable for solemn melodies. Nowadays, trombones are played in symphony orchestras, military bands, big bands, and brass bans. Back then, special axes made of stone were used but in modern times people use chainsaws. The next step is to clean out the termite residual. This can be done by soaking the cut wood with water for a number of days and scraping it out using coals or a stick. The bark will then be stripped off by machetes or other devices. Although tremendously rare, there are also BBB-flat subcontrabass tubas. There are four known of this type and the first two were made by Gustav Benson with the idea from John Philip Sousa. Playing the tuba To assemble the tuba, position the mouthpiece in the tube with a gentle, twisting motion. Never pop or strike it into position.