Style converter berpotensi menggangu ?- Style converter potent to trouble?

Summary : As we know, every keyboard/ organ are posses own style format, Yamaha is STY. Roland is STL etc. but we sometime need to play another keyboard'brand' style in our keyboard. i.e we have Yamaha PSR but we want to try Korg style (from friend or form free markets) therefore we should convert these style to match our keyboard system.My friend in Jakarta (player and owner of keyboard store)