using Page R sequencer of Fairlight CMI (early 1980's). System has two 8bit CPUs and share 4kbyte memory. It can play 8 voices at once! Each voice card has 16Kbyte (not mega or giga) memory (totaly 128Kbyte sound memory). Page R can program totaly 255 patterns. Each pattern can play 1-2 bar, 8 parts. When start Page R, CPU calls each pattern from flopply disk.