I am a newbie posting to this site. Glad I found it. I would appreciate any advice as I have only used a KORG Rhythm 55B and an RhythmAce in the past (70's). It appears the technology has significantly advanced. I would like to know the key difference between an Orla XM400 and a Ketron SD3. I have a Roland FR-7 accordion and would like to add accompaniment. I hear the Ketron is the best -- but is it "too good" if I only use it for accompaniment? Are there any other choices? Thanks for your advice.

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