Rake-and-scrape the hand saw became a constant playing style that is known as traditional Rake and Scrape, and the combination of these instruments used to produce this sound has without any doubt originated in the Bahamas. Quote from Smithsonian Folkways recordings on the origin of Rake and scrape music in the Bahamas states "The rake and scrape band hails back to the 1800s, when the Africans who were brought to the Bahamas looked to make music on whatever was available to them: a carpenter's saw, pork barrels with goat or sheep skin to make a drum, and the accordion which might
Twist per inch find the number of twists per inch for the single, or one can use the doubled back yarn as a measure. With a thick-and-thin yarn, it is best to count the twist over several inches and average the results. This is because the number of twists per inch will tend to vary between the thin and thick sections. In the industry the number of twists per inch is calculated as: formula_1 where formula_2 is the Twist Multiplier, also known as formula_3 or the Twist Factor. This Twist Multiplier is an empirical parameter that has been established by experiments and practice