OpenMusic Reference
play
play
(maquette module) -- causes playback of OM music objects
Syntax
play self &optional &key :approx :interval :port
Inputs
| name | data type(s) | comments |
|---|---|---|
| self | any playable OM score class object | |
| :approx | a positive integer | a keyword input; the number of divisions (tones) in the octave for midicent approximation |
| :interval | a list containing two positive integers | the start and stop times, in milliseconds elapsed |
| :port | a positive integer | the MIDI port to play out over |
Output
| output | data type(s) | comments |
|---|---|---|
| first | causes playback | You’ll see a wacky eight-digit number in the listener. Don’t be afraid. |
Description
Used without optional inputs, play does exactly that, playing back any OM music class object. It is like going into the editor for that object and clicking the Play button.
The optional keyword inputs allow you to further control playback. See the introduction to the Function Reference for an explanation of how keyword inputs operate.
The :approx input allows you to specify the temperament of the octave in exactly the same way as for the approx-m . See its entry for details. You may use whole tone, 12-tone, 24-tone or 48-tone divisions of the octave.
The :interval input lets you specify where to begin and end playback. It is a list of two values in milliseconds in the form (start end) where zero is the beginning of the object.
The :port input lets you specify a MIDI port for playback. It must be an integer.
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