Actually both MSX1 &amp; 2 had only the same basic sound chip (PSG <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;General_Instrument_AY-3-8910" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;General_Instrument_AY-3-8910</a> MSX2+ &amp; Turbo R also had it for backwards compatibility).<p>The reason why Space Manbow there sounds so much better than Zanac A.I. is that Konami started to put their own sound chip (SCC <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Konami_SCC" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Konami_SCC</a>) in the cartridges of their later games, which would improve the sound capabilities of the MSX. This is one example of the &quot;plug and play&quot; hardware you mentioned.