Aalice.455
net.music
utzoo!decvax!ucbvax!mhtsa!alice!ark
Fri Jan 29 10:05:20 1982
portable keyboards
Casio makes several portable keyboards.  The two largest can actually be
considered as semi-serious musical instruments.  Each has a piano-sized
keyboard that spans four octaves, runs on 110V, contains a a small speaker,
and has a jack to connect it to an amp, hifi, whatever.  The more
expensive of the two has a (very corny) rhythm synthesizer, the less
expensive one does not.  I have seen them selling for anywhere between
400 and 800 dollars.

Four octaves is enough to play many things from the Well Tempered Clavier.