Forget the global sites (BitMidi, MidiWorld). They don’t have “Pljuni i Zapjevaj moja Jugoslavijo”.
The best keeper of domaći MIDI fajlovi is a site called KarYoke (often found via forums like BalkanDownload or MuzikaZaSve).
Why it’s better:
How to find them:
The best kept secret is old-school forums. Places like Benchmark.rs or Bug.hr have threads dedicated to MIDI sequencing. Users share files via Google Drive or Dropbox. Search for: domaci ex yu karaoke midi fajlovi better free
Because these are community-vetted, you avoid the junk from generic free-MIDI sites.
Yes, there is a regional difference in quality. Forget the global sites (BitMidi, MidiWorld)
If you want “Još Se Noćas Rodila” – find a Croatian-made file. If you want “Tamo Daleko” – Serbian version has better brass.