The bass is unique among the orchestral strings in that it is a member of the viol, not violin, family of instruments. A bass is also sometimes called a string bass, upright bass, or double bass. Bass players are not only in demand in the world of classical music.
Warping: The parallel winding of warp ends from many winding packages (cone, cheese) on to a common package (warp beam) is called warping.arping carries out following operations: Objects of Warping: To arrange a convenient number of warp yarns of related length so that they can be collect on a single warp beam as a continuous sheet of yarns which can be used for sizing or next process.
Denim is a sturdy cotton warp-faced textile in which the weft passes under two or more warp threads. This twill weaving produces a diagonal ribbing that distinguishes it from cotton duck. The most common denim is indigo denim, in which the warp thread is dyed, while the weft thread is left white. As a result of the warp-faced twill weaving, one side of the textile is dominated by the blue warp threads and the other side is dominated by the white weft threads.