It varies widely, based on both composer and sound driver.

Give these a try -

https://chiptune.app/?play=Contemporary%2FCatskull%20Records...

https://chiptune.app/?play=Sega%20Genesis%2FRolling%20Thunde...

https://chiptune.app/?play=Sega%20Genesis%2FTime%20Trax%2F01...

\https://chiptune.app/?play=Sega%20Genesis%2FShining%20Force%...