Rake-and-scrape Rake-and-scrape Rake-and-scrape is a genre of music native to the Bahamas. Its main instruments are associated with the Goombay drum, Accordion also known as a Concertina, and a Hand saw. In 1886 an article in the Nassau Guardian mentions the usage of the Banjo, Drums, Concertina and other instruments during a celebration by Black Bahamians. The Concertina is also referenced to be in use in Nassau by Black Bahamians by William Drysdale in his book "In sunny lands: out-door life in Nassau and Cuba pg 29" written in the early 1880's. William Drysdale writes "They were three of a kind
Twist per inch that the maximum strength of a yarn is obtained for a definite value of K. In the case of ring spun cotton yarns, for example, the following values of K have been found to give the best results. Twist per inch TPI (twists per inch or turns per inch) is a term used in the textile industry. It measures how much twist a yarn has, and can be calculated by counting the number of twists in an inch of yarn. Twist is needed in yarn to hold the fibres together, and is added in the spinning and plying processes. The