Differences in key size (width and length) between melodica brands, models?

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    James Beattie


    I’m embarking on my first melodica purchase, and being a pianist for nearly 60 years, I’m keen to find an instrument that gives me a fairly easy transition from piano. Has anyone done any comparisons of key size across the various brands and models, and between the different keyboard sizes (32 versus 37 keys, etc.)? If so, do the individual keys have standard widths and lengths, or do they vary from one brand/model to another? I’ll most likely be buying online, so I won’t have a chance to take my tape measure into a store to check this out myself!

    I’m mainly interested in the most common entry-level (but still professional) models from Suzuki, Yamaha, Hohner, and any other brands you think I should be considering.

    Also, if anyone has opinions on which particular models have “smoother” keyboard actions, lighter or heavier touch, greater responsiveness, etc., that would also be most welcome.

    I couldn’t bring up anything on this topic by searching the forum, but if there are already some good posts on these topics, please point me in the right direction.



    Hi, James,

    I haven’t been involved with melodicas for very long, but in my experience the key sizes between the current Hohner Airboard, Enforcer, and Performer, Suzuku Melodion 37, Hammond Pro and Pro HP 44, Yamaha 37 ERB, and older Hohner Piano 36 are all comparable. I have one Hohner Piano 26 that has much smaller keys. I think the current models are about 70% to 80% of piano size.

    If there’s a rule for this that I don’t know, maybe somebody else will chime in with the details.

    I’ve fiddle-farted with pianos for around fifty years now, but I’ve recently taken up organs. (Their keys are not exactly piano-sized, either, but closer than melodicas.) By the way, I have a couple of modern Roland compact synths (DS-61, VR-09B, and FA-06) that don’t have full size keys, either.

    James Beattie

    Thanks Lamar. I’ll see if anyone else replies with more details, and will also try and contact a couple of the manufacturers although I won’t be holding my breath for them to reply!

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