This version of PLAY IT BY EAR is intended to be used for demonstration
  purposes only.  The program is fully functional.  After 10 minutes of
  use the program will abruptly end.

  Please refer to the on-line help feature for information on
  the general use of the program.  This file simply covers some undocumented
  features and emphasizes some important things that you should know before
  using the program.


  MOUSE SUPPORT.  You MUST have a mouse installed on your computer to use
  Play It By Ear.


  USING THE PC INTERNAL SPEAKER.  The IBM PC internal speaker hardware was
  never intended to be used for serious musical performance.  The sound
  quality is adequate and the pitch is accurate.  Unfortunatly, this is only
  true for single voice melodies.  Simultaneous pitches, like intervals and
  chords, are not feasible.  We have seen some resourceful programmers make
  the PC hardware approximate chords, but for the purpose of ear training the
  results just were not good enough.  Therefore, if you do not own sound
  enhancing hardware, Play It By Ear will arpeggiate, i.e. play like a melody,
  all interval and chord forms.


  MORE ABOUT THE INTERNAL SPEAKER.  The volume slider has no effect on the
  sounds coming out of your PC internal speaker. Once again, the hardware
  is too limited to make this practical.  In addition, some MIDI keyboards
  may not be sensitive to note volume commands. These keyboards will not
  respond to the volume slider either. To regulate the volume, simply use
  the keyboard's volume control.


  COMMAND LINE OPTIONS.  Play It By Ear supports HERCULES, EGA/VGA and CGA
  video adapters.  At the start of the program the highest resolution mode
  of your hardware is detected and used. You may force the program to use a
  specific video mode by invoking the program as such:

    EAR C   (for CGA)
    EAR E   (for EGA)
    EAR V   (for VGA)
    EAR M   (for Hercules).


  At the end of each exercise drill a message pops up that indicates how
  you did for that particular response: "OK" or "OOPS!". For you power users
  a command line option is provided to suppress this feature:  EAR X. This
  option may be mixed with one of the above video options, e.g. EAR C X.


  SOUND BLASTER SUPPORT.  If you own a Sound Blaster card you will need
  to run the program using the "S" command line option.  A convenient BAT
  file, EAR_SB.BAT, has been included on the master disk that does this for
  you.  So, to make the program recognize your card, type either of the
  following at the DOS prompt:

    EAR S
    EAR_SB


  SOUND BLASTER MIDI.  Version 1.00 of Play It By Ear does not support the
  MIDI expansion module of the Sound Blaster card.  If you own the Sound
  Blaster card with the MIDI module, or think that you may purchase one in
  the future, please be sure to fill out and send in the registration form
  so we can let you know when it is supported.


Play It By Ear is available directly from the publisher:

   Ibis Software
   90 New Montgomery Street, Suite 820
   San Francisco, CA  94105
   (415) 546-1917, voice  (415) 453-0346, Fax

   It is also distributed through the following national software
   dealers (among others):

   Egghead Software
   Soft Warehouse
   Waldensoft (Walden Books)
   Software, Etc. (B. Dalton Books)