The answer lies in limitation. The preset Music Finder database on a keyboard is static. It contains perhaps 1,000 to 2,000 songs. While this sounds like a lot, it is finite. A working musician might need to cover a top-40 song released last month, or a niche classic that Yamaha didn't include.
But what happens when the built-in database isn't enough? This is where the search for a becomes essential. yamaha music finder plus download
Furthermore, as Yamaha released newer keyboards (like moving from Tyros 4 to Tyros 5 or Genos), the old databases became obsolete in their native formats. The answer lies in limitation