You could use EMBED to autoplay WAV and MIDI. IE (in classic Microsoft fashion) also defined BGSOUND for the same.
I remember an email signature from around that time that went "If I wanted your website to make sound, I'd have licked my finger and rubbed it across my monitor."
I remember an email signature from around that time that went "If I wanted your website to make sound, I'd have licked my finger and rubbed it across my monitor."