User Guide Keyboard KeyStudio 25
Table Of Contents
- Session KeyStudio 25 User Guide 
- Introduction
 - Session KeyStudio Features
 - What’s in the Box?
 - Minimum System Requirements
 - Installation and Setup
 - Getting Started Making Music with Session
 - More Information on Configuring Session
 - Using KeyStudio with GarageBand
 - About MIDI and Software Synthesis
 - The KeyStudio 25 Keyboard
 - Using the KeyStudio 25 Keyboard
 - KeyStudio 25 Advanced Features 
- Recalling Presets
 - Storing Presets
 - Duplicating and Organizing Presets
 - Enigma Software
 - Sending a Snap Shot
 - Muting All Controllers
 - Program Mode Overview
 - Assigning MIDI CCs
 - Assigning MIDI Channels
 - Reassigning MIDI CC for the Modulation Control
 - Reassigning MIDI CC for the Pitch Control
 - Reassigning MIDI CC for the Sustain Pedal input
 - Limiting the Range of the Controls
 - Setting Toggle Values for the Buttons
 - Assigning MIDI Machine Control (MMC) Commands to a Button
 - Assigning a Note to a Button
 - Assigning RPN/NRPN to a Fader or Knob
 - About SysEx Messages and Device ID
 - Assigning the Device ID
 - Memory Dump
 
 - MIDI Messages In-Depth
 - Troubleshooting
 - Appendices - Useful MIDI Data
- Appendix A: MIDI Implementation Chart
 - Appendix B: Assignable MIDI CC’s on KeyStudio 25
 - Appendix C: Hexadecimal Conversion Chart
 - Appendix D: General MIDI Preset Specification
 - Appendix E: MIDI Note Numbers
 - Appendix F: Standard MIDI Controller Numbers (MIDI CC’s)
 - Appendix G: Roland GS and Yamaha XG NRPN Support
 - Appendix H: General MIDI Reverb and Chorus Types
 
 - Technical Info
 - Warranty
 - Contact
 
 

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Session KeyStudio 25 User Guide
Technical Info
Caution: Electro Static Discharge, Electrical Fast Transient and Conducted RF interference may cause the unit malfunctioning. In such case, 
unplug the unit and plug it in again to restore normal operation.
Note: Your M-Audio product has been tested to comply with FCC Standards FOR HOME OR OFFICE USE. Modifications not authorized by the 
manufacturer may void users authority to operate this device.
Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. 
These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, 
uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference 
to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does 
cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is 
encouraged to try to correct the interference by one or more of the following measures:
<  Re-orient or relocate the receiving antenna.
<  Increase the separation between the equipment and receiver.
<  Connect the equipment to an outlet on a circuit dierent from that to which the receiver is connected.
<  Consult the dealer or an experienced radio/ TV technician for help.
ASIO is a trademark of Steinberg Soft– und Hardware GmbH.
VST is a trademark of Steinberg Soft– und Hardware GmbH
Warranty
Warranty Terms
M-Audio warrants products to be free from defects in materials and workmanship, under normal use and provided that the product 
is owned by the original, registered user. Visit www.m-audio.com/warranty for terms and limitations applying to your specic 
product. 
Warranty Registration
Immediately registering your new M-Audio product entitles you to full warranty coverage and helps M-Audio develop and 
manufacture the nest quality products available. Register online at www.m-audio.com/register to receive FREE product updates 
and for the chance to win M-Audio giveaways.
WARNING: This product contains chemicals, including lead, known to the State of California to cause cancer, and birth defects or other 
reproductive harm. Wash hands after handling.
Session KeyStudio 25
Tested to comply with
FCC standards
FOR HOME OR STUDIO USE
© 2008 Avid Technology, Inc. All rights reserved. Product features, specications, system requirements and availability are subject to change 
without notice. Avid, M-Audio, Enigma, Session, O2 and KeyStudio 25 are either trademarks or registered trademarks of Avid Technology, Inc. All 
other trademarks contained herein are the property of their respective owners.










