Dear txdm txdm, Never heard of the Ondes Martenot so I looked up the instrument and was amazed...a beautiful instrument and way ahead of its time. I was impressed. The sounds you hear on my album are not from this instrument, although I realize that some sounds actually do resemble the Ondes Martenot sounds a bit, but, this is purely coincidental. Many sounds from this album come from the Casio CZ-1 and the Siel Orchestra 2. Cheers from Azores, Nimanty.