I have recently bought a korg x5 from my friend. But it is untuned. I have no user manual. How will i be able to standard tune my x5 ?

My X5DR manual says to "use page 0A MASTER TUNE in Global mode.

If each note sounds out of tune, you should look at the tuning scale used. Choose EQUAL TEMPERMENT to tune the X5 for most Western Music. If it is set on Arabic, Pelog, Sledro, Pure Major, Pure Minor or any other, it will sound out of tune when playing modern music.

Steve Martin
Ward Music Ltd.