If you have a folder of karaoke songs that Windows will not open, there is a good chance they are .kar files. A .kar file is a MIDI karaoke file: a standard MIDI music file with lyrics embedded in it so the words can light up in time with the music. That combination — real editable MIDI music plus synchronized text — is what made .kar the classic format for PC karaoke, and it is exactly what vanBasco’s Karaoke Player was built to play. This guide explains the format in plain language and shows you how to play these files on a modern Windows PC.
What .kar, .mid, .midi and .rmi actually are
All four extensions belong to the same MIDI family. A .mid or .midi file is a standard MIDI file containing note, instrument and tempo data rather than recorded audio. A .rmi file is a RIFF MIDI file, essentially the same musical data in a RIFF wrapper. A .kar file follows the Karaoke extension of that idea: it carries the same kind of music data plus lyric events arranged so a player can display the words syllable by syllable or line by line as the song plays. Because the music is generated live from MIDI data, the file sizes are tiny, the tempo and key can be changed without the distortion you would get from speeding up a recording, and individual instruments can be muted or soloed.
The flip side matters too: vanBasco does not play MP3, MP3+G, CDG or video karaoke. If your song is an MP3 backing track, you need a different player for that file. This guide — and this player — is specifically about the MIDI family listed above. Treating a midi karaoke player as a general media player is the most common source of ‘it won’t play my song’ frustration.
Step 1: Install the player and associate the files
Download the player from the Download page first if you have not installed it yet. During setup, leave the associations for .kar, .mid/.midi and .rmi ticked. That tells Windows that double-clicking any of those files should open vanBasco. If you installed earlier without the associations, you can fix the association afterwards from Windows Settings or by right-clicking a file — the troubleshooting guide linked at the end walks through that repair in detail.
Step 2: Open a song three ways
- Double-click the file in File Explorer. This is the fastest method once associations are set.
- Drag the file onto the vanBasco window or playlist. Useful when you are auditioning several files in a row.
- Use the player’s Open command and browse to the file. Useful the first time, when you also want to see which folders the player remembers.
Whichever method you use, playback should start immediately. The lyrics window shows the words if the file contains lyric data. The piano keyboard window, if you open it, lights the notes being played in real time — a quick visual confirmation that MIDI data is flowing even before you judge the sound.
Step 3: Control playback like a singer, not just a listener
Pause, resume and restart behave as you would expect, but three controls are worth learning on day one. First, tempo: you can slow a song down to learn it or speed it up, without changing its pitch in the way a tape would. Second, key: you can shift the song up or down to fit your voice. Third, the mixer: you can mute or solo individual instruments — muting the melody line is the classic way to sing over a thinner backing once you know the tune. vanBasco can save tempo, volume and key with a song in a playlist and recall them next time, so the settings you perfect tonight are still there next week.
Step 4: Build a small starter playlist
Instead of opening files one by one, add ten or twelve favourites to the playlist window and save the list as a .vpl file. A .vpl is vanBasco’s own playlist format. Saving early teaches you the workflow, gives you a one-click way back to a working session, and protects you if you later experiment with skins or window layouts and want a known-good starting point to return to.
When a file plays with no words
Music with no lyrics usually means the file itself has no lyric track. Many plain .mid files were made as instrumentals or as music data only. Open the same file and check whether any lyric events exist by trying a known-good .kar file for comparison: if the known-good file shows words and yours does not, the file — not the player — is the difference. The dedicated troubleshooting guide on missing lyrics works through the checks in order.
Good habits that make this stick
Guides are only useful if the result survives the next session, so finish with three habits. First, test .kar with one familiar song before you rely on it with a group — familiarity makes differences obvious instead of debatable. Second, save whatever you set up: a named playlist, a written note of a setting that worked, or the verified installer kept with its checksum, so a future you is not reconstructing tonight’s success from memory. Third, change one thing at a time from here on. Once a setup works, most later confusion comes from two well-meant tweaks made together, after which nobody can say which one helped. A karaoke library and a player configuration are both long-term assets for a household; the households that enjoy them for years are the ones that treat a working setup as something to protect, not something to keep redecorating.
Finally, remember the boundaries of the software itself. vanBasco’s Karaoke Player v2.53 is the final release from March 2004: freeware for personal, non-commercial use, Windows only, and focused on .kar, .mid, .midi and .rmi files with .vpl playlists. Working within those boundaries is not a limitation to apologise for — it is exactly why the player is still fast, predictable and useful. If a future need falls outside them, such as MP3+G or streaming catalogues, add a modern tool alongside vanBasco rather than forcing this player to be something it never claimed to be.
Frequently Asked Questions
Can Windows play .kar files without extra software?
Not usefully. Windows has no built-in MIDI karaoke player that displays synchronized .kar lyrics. You need a dedicated player such as vanBasco, which is freeware for personal use.
What is the difference between .kar and .mid?
Both are MIDI-based. A .kar file is designed for karaoke and carries embedded lyrics timed to the music. A .mid file may or may not contain any lyrics at all, which is why some MIDI files play music with no words.
Can vanBasco play MP3 or CDG karaoke?
No. vanBasco supports .kar, .mid, .midi and .rmi, plus .vpl playlists. It does not support MP3, MP3+G, CDG or video formats.