Usually marked by a squiggly line in the music, a glissando is an effect in which a musician makes one note 'slide' into another.
A trombone player performs a glissando by moving the slide without tonguing.

A piano player performs a gliss by dragging his or her fingers along the keys.

A harpist drags his or her fingers along the strings on a harp to glissando.

A guitarist will pluck a note, and while the string is still vibrating, he or she will slide their finger along the neck.

A string player glisses similarly to a guitarist, but instead of plucking they will play a note with their bow.

A brass player that isn't a trombonist or a woodwind player will simply play a chromatic scale between the two notes.
by aflatharmonicminor May 19, 2014
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