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How to install SCALA on the Mac

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Sharing how I got SCALA running on the Mac Book Air. Was reasonably easy to do, as it turned out. This was under Mavericks.

  1. download and installing Gtk+ from http://www.huygens-fokker.org/software/gtk2-2.24.23.mpkg
  2. download Simple Synth and putting it into the Applications folder (it's not got an installer) - from http://mac.softpedia.com/get/Audio/SimpleSynth.shtml
  3. download and run the Scala installer for the Mac from http://www.huygens-fokker.org/scala/downloads.html - it warned about needing to change my permissions to allow "apps downloaded for anywhere" so changed that but not sure it was needed. You can just use Ctrl + Open and then Open.
  4. This might be the crucial step. I wasn't sure what to do about the X11 - but after looking briefly at the options I decided to just install the latest version of XQuartz. It's a bit over 100 MB, not that big for a modern hard disk. You can get it here: XQuartz

So anyway - installed that, started up Scala and it ran.

One more confusing thing - Scala didn't seem to be doing anything, just got a blank window saying "Please wait for the X11 system to start" - and that's what has got the SCALA icon. Turns out, you have to switch to XQuartz - a big X inside an O icon - and there you find SCALA under its Window drop list. Also, set Simple Synth to SimpleSynth virtual input as its Midi source - and if you want to switch to a particular instrument you have to select it in all the channels for Simple Synth.

And in SCALA - you find the choice of Midi output under Edit (Menu) >> Preferences >> Midi (tab) >> MIDI Relay Settings, change the Midi Output device to SimpleSynth virtual input - and then if you want to relay from midi in keyboard, then you do that from the MIDI Relay settings, and click on Start Relaying. And can make scales from File >> New e.g. et or whatever.

As for loading the scales archive - you have to zip it first (Mac auto unzips it after download) and then import it into SCALA from File >> Import scales.zip

In Yosemite

I haven't yet tested SCALA in Yosemite.

If you get these warnings in Yoesmite

(process:23412): Gtk-WARNING **: Locale not supported by C library.
Using the fallback 'C' locale.
 
(scala:23412): Gtk-WARNING **: cannot open display: "

then it might help to start up terminal and run

DISPLAY=:0 /Applications/Scala.app/Contents/Resources/scala-22-mac-osx/scala

Got this idea from: http://www.facebook.com/l.php?u=http%3A%2F%2Fsourceforge.net%2Fp%2Fdia-installer%2Fsupport-requests%2F98%2F&h=HAQFlKXLA

I have no idea if this will work, but - running that command under Mavericks is an alternative way of starting scala, so it might work.

There - you can check the path to scala inside Scala.app by using right click and then show package contents - that's how I found it myself.

I will try this out myself when I get to the next stage of testing my apps in Yosemite. (Will need to delete my Snow Leopard virtual machine to do this as I don't have enough disk space otherwise).

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