To get the best of your keyboard and music production some knowledge about features and standards are necessary.
A lot of interesting documents covering MIDI, XG, and SysEx etc. are found at this page.

These links points to pdf documents. To read these files Acrobat Reader is required. Get it from here. 		These links points to web sites
My Articles and My Software
• Style Creation Course
• Style Reference
• MIDI Reference
• Link: Online versions of files above
• Yamaha Keyboard Resource Site - English version midi2style - Help
• Yamaha Keyboard Resource Site - English version midi2style - Getting Started
• Yamaha Keyboard Resource Site - German version midi2style - Hilfe
• Yamaha Keyboard Resource Site - German version midi2style - Wie fange ich an
• Yamaha Keyboard Resource Site - Danish version midi2style - Hjælp
• Yamaha Keyboard Resource Site - Danish version midi2style - Kom i gang 		  MIDI
• General MIDI System Level 1 (1998)
• General MIDI System Level 2 (1999)

System Exclusive Messages (SysEx)
• The Beggar's SysEx Guide
• Link: SysEx Resources

XF
• XF Format Specifications (2.01 1999)
• Recom. for Prod. XF Song Data (1.01 1999)

  XG
• An Introduction to XG (1.02 1995)
• XG Specifications (2.00 2001)
• XG Specifications (1.32 1998)
• XG Format Specification (1.26 1996)
• Yamaha XG Specification (1.23 1996)
• XG GuideBook (1998)
• XG GuideBook (1.04 1996)
• Recom. for Prod. XG Song Data (2.00 1999)
• XG Music Data Prod. Recom. (1.03 1995)
• XG Interactive Online Help (2.3 1996)
• XG Xtra 1995-96 (8 pdf's in a zip file)
• Link: XG Resources 		MIDI Resources
• MIDI Manufacturers Association
• MIDI Programming Docs
• MIDI - Language of Gods
• EMUSIC-L - MIDI specification
• MIDI Basics
• MIDI Resources
• MIDI Tutorials - I Write The Music
• Links - Compose and Play Music
• OSS Programmer's Guide
• MIDI 101 by TweakHeadz Lab
• Thomann's Cool Online Guides
• MIDI Learning Center