Marble Zone

Track 11

Composed by Masato Nakamura

SEGA

Channel Breakdown

10 channels

Yamaha YM2612 + SN76489VGM format

FM 1fm

4-operator FM synthesis voice

FM 2fm

4-operator FM synthesis voice

FM 3fm

4-operator FM synthesis voice (optional special mode)

FM 4fm

4-operator FM synthesis voice

FM 5fm

4-operator FM synthesis voice

FM 6 / DACfm

FM voice or 8-bit PCM DAC for sampled audio

PSG 1pulse

SN76489 square wave tone channel

PSG 2pulse

SN76489 square wave tone channel

PSG 3pulse

SN76489 square wave tone channel

PSG Noisenoise

SN76489 noise channel

fm (6)

pulse (3)

noise (1)

The Genesis combines a Yamaha YM2612 FM synth chip (6 FM voices, one convertible to a PCM DAC) with a legacy SN76489 PSG (3 square + 1 noise). The YM2612's rich FM synthesis gives the Genesis its distinctive gritty, punchy sound.