* [http://cpcrulez.fr/hardware-audio-music_machine.htm ''Music Machine'' from CPCrulez]
* [http://www.compenghardware.ditspeccy.ieorg/stafftemp/tscarff/6800/6850acia/6850Amstrad-MusicMachine.htm Information about the Motorola 6850 ACIAhtml ''Music Machine'' from hardware.speccy.org]* [http://www.microhobby.com/200903/hard/ram_music_machine.htm Spanish site about the ''Music Machine'' from www.microhobby.com]
* [http://www.worldofspectrum.org/hardware/feat17.html Advert for the Music Machine]
* [http://reviews.harmony-central.com/reviews/Keyboard%2FSynth/product/RAM/Music+Machine/10/1 Review]
* [http://www.wacci.org.uk/magazine/136/136_10.html Data transfer via MIDI]
* [http://hardwarewww.speccycompeng.orgdit.ie/tempstaff/Amstrad-MusicMachine.html ''Music Machine'' from hardware.speccytscarff/6800/6850acia/6850.orghtm Information about the Motorola 6850 ACIA]
[[Category:Serial interfaces]] [[Category:Peripherals]] [[Category:Music_and_sound]] [[Category:Manual]]