Oops my bad Diki...I totally misread your OP- You said chord sequencer NOT an arranger....

In this case I retract all my comments as they were related to ARRANGER apps.

Yes I agree with you now. As there are several midi apps that are very VERY capable midi sequencers, it is no stretch to have them include the ability to record the midi chord data input for later playback to an arranger - in fact they should be able to record directly from any arranger engine that has correct midi protocols (and that's all of them afaik)

Dennis