On September 27th and 28th, 19 Musicians and Visualists from around the globe will perform some of the best chipmusic the world has to offer at world class Tokyo venue, Koenji High.

YERZMYEY ^ AY-RIDERS: Chiptunes / micromusic / lo-fi electro / 8bit pop – since 1989 ( http://hooyprogram.republika.pl/ ).
Weapon of choice – Sinclair ZX Spectrum with AY chip.
Internet:
http://yerzmyey.i-demo.pl/
https://soundcloud.com/yerzmyey
In 2002 I founded AY-RIDERS band. We play chiptunes on our Spectrums (48K, 128K and higher models).
http://ay-riders.speccy.cz/

INFO:
I started making chiptunes on ZX Spectrum computer, in 1989. ZX Spectrum 48K has 1-bit sound by default,
but one can also connect an AY-interface to the machine (existing since its very beginning in 1982 and even earlier
because first AY-interfaces have been built for ZX81 computer - 1981).

Anyway - then Spectrum48 has the same sound-abilities what Spectrum128,
Amstrad CPC, Atari ST or MSX have (they using the same chip standard: AY/YM). It means 4-bit sound, 3 channels + white noise generator, square wave and several 'buzzers'. Or - instead of it - I can use 3 channels of 4-bit digital sound with the AY, but then I have to fit all samples in 48Kb of RAM.