openculture.com
Introducing the Mellotron: A Groovy 1965 Demonstration of the “Musical Computer” Used by The Beatles, Moody Blues & Other Psychedelic Pop Artists
But the early sampling keyboard, an electro-acoustic device that used pre-recorded tape strips mounted inside an organ-like keyboard, was first marketed, Gordon Reid writes at Sound on Sound, to “old-time/modern/Latin dance audiences.” It was supposed to convincingly replicate an orchestra.