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Some users want to use an external MIDI device to play back the generated
melodies. To faciliate this an option to the UI should be added where a
user can select a receiver. This receiver can either be an internal or an
external MIDI device.

The fitness function for a generated melody consists of a number of 
strategies. To make it straightforward to add new strategies a plugin system 
should be created. The plugin system makes it an easy task to add new 
strategies. These strategies can be enabled/disbabled and configured in the 
UI.

Promote melody composition to separate project

What steps will reproduce the problem?
1. Unzip the archive 1.0.2 and run the application is described in the
readme.txt
2. Generate a melody

What is the expected output? What do you see instead?
Expected: When the melody generation is finished, the melody should be played.
Actual: When generation is finished, the melody is played but no sound is
heard. When the application is run as a Groovy script, sound is heared.

Possible solution: check which receiver the sequencer is using. We may have
to add an explicit reveiver instead.

What steps will reproduce the problem?
1. Download en unzip the melody-composition-1.0.zip
2. Follow the instructions in the readme.txt for running the App.groovy script

What is the expected output? What do you see instead?
The application is run and the UI is displayed.

On some configurations a NoClassDefFoundError is thrown. We must examine
why and how to solve this.

Add a readme.txt to ga-moving-example.zip with instructions for how to run 
the example.

What steps will reproduce the problem?
In downloads there is no zip folder present to download VaadinSamples project

What is the expected output? What do you see instead?


What version of the product are you using? On what operating system?


Please provide any additional information below.