Casio

Every review I see of the Casio PT30 (including the ones on this site) seem to miss the point of this brilliant little instrument. It was mainly marketed at the time as an aid to songwriting. This is because you can input (or "record") a melody into the memory, press the "chord" button, and it will play back your melody FULLY HARMONIZED. Yes, it will it will come up with chords that fit your tune! The chords are also shown on the display, so you can note them down for use with "real" instruments. It will even change individual chords if you don't like the ones it chooses - you press the "change chord" button at the point you want the change to occur and it will select another chord (or you can even make your own chord substitutions by inputting using the chord keys to the left of the keyboard).

As such this keyboard was great for budding songwriters who could come up with a tune but were unable to figure out a suitable chord accompaniment for it.

Yes, the keyboard tones, rhythms etc are a bit cheap & nasty sounding (though they can be made to sound good through a decent amp) but that wasn't really the point of the instrument.

Extremely rare keyboard, much harder to find than its little brother the MT-400v (with mini keys + detachable speakers). Was lucky to pick one up locally for a decent price.

Wow I´m blown away by how good this thing sounds!!! It´s alive, organic, with rich, creamy and weighty tones emanating from its humble electronics and onboard speakers.

The full size keys feel lovely and solid (much better than modern basic keyboard keys). The speakers have a decent amount of bass and waaaay too much volume (runs on batteries so this thing is a portable 80´s disco in a box).

What really makes this a unique and special instrument is its analog filter, stereo chorus, "waw" (lfo resonant filter), which can be applied to any of the sections (rhythm, bass+chords, main tone, white noise generator).

I bought it mainly for its rarity as a collectors item but this thing sounds so damn good I´m going to use it live with various afro/brazilian synth/funk projects. Everybody loves the sound, so rich and musical I can´t believe it´s the same electronics as the MT-65 (also a great keyboard, but the MT-410v is truly on a league of its own.)

If you find one and you like funky/unusual/vintage gear, BUY IT. I promise you will thank me for it later.