Hi Deane

In relation to what:

A sequence of played chords
A sequence of chords that play styles
A temporary input of chords
A permanent input of chords
A Live Looped chord sequence

In a basic form it can easily be achieved with a Midi file (Available on all arrangers)
More advanced means it can be done on the fly (PA3x or G1000) live

A little more clarification is required in what you actually want to do with the chord sequence, before we can identify what arrangers can do what you want.

Bill
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English Riviera:
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