The Master System was a video game console produced by Sega beginning in 1985.  For audio, the SMS used a clone of the Texas Instruments SN76489 chip.  These clones were also present in the Sega Genesis and Game Gear systems, the latter adding stereo functionality.

The SN76489 chip has 1 white noise and 3 square wave tone generators.  Each channel has 16 levels of volume.  The third square wave channel can also be used to control periodic noise in the white noise channel.

'[#[Tools]
- '[[VGM Music Maker]
- '[[MOD2PSG2]
- '[[DefleMask Tracker]
- '[[SnevenTracker]
- '[[XPMCK]

'[#[Accepted file format]
Both this entry format and the '[[sgen (format)[sgen entry format] share the .VGM file format.

'[#[Playback (for voting)]
'[l[http://vgm.mdscene.net/forum/viewtopic.php?t=112[in_vgm] - a winamp plugin for playback
'[l[https://github.com/vgmrips/vgmplay[vgmplay]

'[#[See also]
Want to listen music ripped from the console’s games? check out the ripped chiptune repository!
- '[[Complete list of ripped chiptunes repositories]