Casio CTK-4000 demo. Sampling, Arpeggios, Drums, Soundset

This was my first experience with the CTK4000 in 2014. It was a big leap forward for the more-or-less unchanging Casio CTK series. The addition of the arpeggiator, especially, took it to new levels. Combined with the sampler (very basic, but effective) you can take your sound quite far. MIDI interface is USB. Not bad for a keyboard that you can get for around $100 these days.