In the most basic of terms, an arranger is a keyboard that allows a player to play cords in the left hand and get a full accompaniment with drums, bass, guitar or some cord instrument and some other filler instruments. Every time you play a different cord, the accompaniment would also move to play that cord.

If arranger keyboards are used properly and to their fullest potential, the advantage of having such a feature is that one person could sound like a live and happening band as opposed to sounding like some one playing keyboards to a backing midi or MP3 recording.

I am sure that other members would give a more detailed explanation of an arranger.


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