TRS-80
Orchestra-85/90

STEREO MUSIC SYNTHESIZER WITH PERCUSSION FOR MODELS 1, III AND 4

On this Page you will find information on the emulation of the Orchestra 85/90 by my TRS-80 emulators. You will also find the Orchestra 85/90 software and collections of music files.

All virtual disks on this page require at least version 4.00 of my emulator to run, except where otherwise noted. All virtual disks on this page are in LDOS format.

The information provided below is for version 5.30 and above of my emulators.


The Orchestra 85/90 emulation has the following features:

Depending on the capabilities of your sound card you can directly play and enjoy Orchestra 85/90 music almost identical to that of a real TRS-80. You can also record your Orchestra 85/90 music for playback in Windows (if your sound card is not supported). The emulator records Orchestra 85/90 music to a standard 8bit Wave file which will also allow you to edit the digital music, compress the files into Mpeg or RealAudio format or make collections of digital music for use with other Windows programs.


To play music on the Model 1 emulator, execute the ORCH85 program. When the program starts you will be asked several questions.

  1. FAST CLOCK? (Y/N)
    Answer:
    Y
  2. 2.6, 3.5, 4.0 MHZ? (2/3/4)
    Answer:
    4
  3. SOFTWARE CONTROL? (Y/N)
    Answer:
    Y
  4. ENABLE CODE?
    Answer:
    3E01D3FE
  5. DISABLE CODE?
    Answer:
    3E00D3FE
  6. HOW MANY VOICES? (3/4/5)
    You may answer either 3, 4 or 5 voices. You are not required to select five voices. The fewer voices selected, the less aliasing, the higher the resolution, and the less memory required per music file. For best results select the number matching the music files to be played.
  7. SAVE PROGRAM? (Y/N)
    The configured program is now in memory and is ready for use. You can:
  8. The Orchestra-85 program is ready to go.

To play music on the Model III/4 emulator, execute the ORCH90 program. When the program starts you will be asked several questions.

  1. HOW MANY VOICES? (3/4/5)
    You may answer either 3, 4 or 5 voices. You are not required to select five voices. The fewer voices selected, the less aliasing, the higher the resolution, and the less memory required per music file. For best results select the number matching the music files to be played.
  2. SAVE PROGRAM? (Y/N)
    The configured program is now in memory and is ready for use. You can:
  3. The Orchestra-90 program is ready to go.

Be sure to run the emulator in Model 4 mode. If you don't you will be asked additional questions similar to the ones asked by the Orchestra-85 program.


Now that the program is loaded it's time to play a music file. Type the command:

G GYPSY ENTER

This command will READ, SCORE, and PLAY the file entered. If you typed everything correctly and the emulator's configuration is setup correctly (for direct play) the file should load, and in a few seconds it should start playing. To stop the music press 0. The file remains in memory and may be played again by typing P ENTER.

Some other usefull command are:

R Load a music file into memory
S Compile a music file
P Play scored music file
G Load, Score & play a music file
0 Stop playing music
D Directory
K Delete a Music File
Q End Session (exit)

The complete Orchestra-90 Manual in .PDF format is available for download on my:

TRS-80 Documentation Preservation Page.


The Orchestra 85/90 program disk contains: