Glissando

NotationThe glissando is indicated by following the initial note with a line, sometimes wavy, in the desired direction, often accompanied by the abbreviation gliss.. Occasionally, the desired notes are notated in the standard method (i.e. semiquavers) accompanied by the word 'glissando'. Discrete glissandoOn some instruments (e.g., piano, harp, xylophone), discrete tones are clearly audible when sliding. For example, on a keyboard, a player's fingernails can be made to slide across the white keys or over the black keys, producing either a C major scale or an F♯ majorpentatonic scale, or their relativemodes; by performing both at once, it is possible to produce a full chromatic scale. Maurice Ravel used glissandi in many of his piano compositions, and "Alborada del Gracioso" contains notable piano glissando passages in thirds executed by the right hand. Rachmaninoff, Prokofiev, Liszt and Gershwin have all used glissandi for piano in notable compositions. Organ players—particularly in contemporary music—sometimes employ an effect known as the palm glissando, where over the course of the glissando the flat of the hand is used to depress a wide area of keys simultaneously, result