So, for SMBX maps, I like to use custom music, and so I decided I'd like this song in:
but, the thing is, I like it to stay 8/16-bit (in this case, 16-bit)
so, I started using MIDIs. MIDIs, for those who don't know, are files created by a- you guessed it- MIDI, and they sound very, how should I put this, 80's like.
Very simplistic, sounds like the music card of the SNES could play it. So yeah, MIDIs.
by the way I got my Cake MIDIs http://en.midimelody.ru/cake/, and I suggest http://en.midimelody.ru and http://www.free-midi.org/ for MIDIs.