Guitar slides have come a long way since the they were first fashined from the necks of wine bottles by Blues players back in the early 1900s! Playing with a slide allows a guitarist to move between pitches without having to stick strictly to semitone intervals, or frets, like a string player or trombonist. This style often creates a laid back dreamy tone, but it can also be a frenzied rattling sound in a bluegrass or roots setting, particularly on a dobro or resonator guitar. Guitar slides come in many materials, but the main ones are brass, chrome and glass. Slides also vary in shape and size, which is related to finger size and playing style, so be sure to try a few!