Myriad Harmony-Assistant & MyOrgan / Hauptwerk-1 Chapter 1
Version française
 
Conventions of reading
 To save writing, I intend to employ the following abbreviations:
GOLD: Gold base soundbank of Myriad.
HA for Harmony-Assistant and Melody-Assistant indifferently. It's your job to remember that Melody-Assistant is unaware of scripts.
HWK1 for the virtual organ Hauptwerk version 1, the competitor of MyOrgan.
MA for Melody-Assistant .
MO for MyOrgan and/or Hauptwerk-1 indifferently.
ODF for the files describing the organ. ODF is the acronym of Organ Definition File.
G.O: Great manual
Pos: positive manual
Recit = swell manual  
 
Introduction
Do you intend to play or compose organ music  with Melody or Harmony-Assistant, without using the instruments of the soundbank GoldBase, which often requires the complex writing on several staves and the quasi obligatory use of very many rules?
There exists fortunately, for the users of PC, a very interesting alternative: the virtual organ MyOrgan. The installation of this Midi peripheral can appear  complicated, but with the assistance of this tutorial, you will succes easily and quickly. Then, when all is ready, it will be a true pleasure of composing or being able to listen like in a concert of the works of Bach, Couperin, Messian…
 
 
Advantages
Among the many advantages of this solution, let us announce:
Exemption from payment for MyOrgan software and its compatibility with its paying competitor Hauptwerk I.
Large variety of virtual organs accurately reproducing famous real instruments, available on the Web some for free, others against payment.
The possibility of building its own instrument, by editing with a word processer the definition file of an organ (ODF).
Multiple possibilities of playing the music with MyOrgan:
Directly starting from HA or MA, controlling MY like a Midi  internal or external synthesizer.
It is this type of application which we will approach in detail in this tutorial.
Without HA or MA, but with a Midi sequencer, to read files midifiles (configured beforehand for a use with MyOrgan).
Playing of the organ "in live", without detectable latency time, while practicing on a Midi keyboard . With good a réverb, one would believe oneself playing in a cathedral.
To play virtual organ with HA, the Gold is not necessary.
 
Advantage compared to the organ stops available Gold : with Gold, you have to be satisfied with the organ sounds provided by Myriad. These sounds are stored fixed, without possibility of modifying them if one considers that necessary. With MO, each note of each stop is a completely accessible independent Wav file. The number of stops is limited only by the number of pipes in your possession.
Other important advantage : when you listen with HA a piece of organ music using the Gold, you cannot change the registration easily, and even, not at all in while reading, because the partition should be modified (and sometimes also, the rules edited). With MO,  click on the picture of a button to put on/off service instantaneously a stop or a combination of stops.

Simply click to switch a stop on/off, even while HA is playing

 
Disadvantages
MyOrgan is a Midi virtual instrument. Like any Midi device, it waits to receive messages to function. If HA & MA can send perfectly the "note-on, note-off" Midi messages  used to produce notes, nothing was designed to send to the desired moments the orders intended to change sound. That will oblige us  to use some rules. The users of HA (HA only) will be lucky thanks to a script which will take care of all. For those who only have MA, programming registration changes in the course of partition will be less easy.