Xavier PRUYS
Hello everyone. I am writing to you with the Google translation, sorry if there are any mistakes.
I am giving you some information about Yamaha style formats. It is very long to read, but I hope it will be useful. To put it simply, the STY format, in principle, works on all Yamaha arrangers (Genos, Tyros, PSR).
Here are the detailed explanations... enjoy reading!
Information about Yamaha files:
Style files - sty, pst, pcs, sst, prs, bcs, fps, scp, aus
Styles are the main component of music reproduction in arranger keyboards.
Style files contain MIDI data and some non-MIDI data.
NB: "aus" styles are audio styles.
A few years ago, style files always had a sty file extension. Now, a number of file extensions are used: pst (pianist); pieces (piano combo); sst (session); prs(pro); bcs (basic); fps (free play); and scp(dj style).
In addition to the built-in styles, additional style files can be loaded into most models. But due to some changes in the style file format over the years, styles may need to be converted to be used in smaller/older models.
Yamaha Expansion Packs (YEP) - yes, ppi, ppf, cpi, cpf
A Yamaha Expansion Pack is a package that adds more content (voices and styles) to the keyboard.
The voices and styles are merged into one file, having a yep or ppi extension.
Some YEPs also contain registrations and/or multipads. This data is not included in the "yep/ppi" file.
Have a nice day
Tatayet