Instrument Collector - Resounz

Play against the computer and try to beat it in this musically educational variation on the classic battleships game!

Objective

You have a collection of instruments in your storeroom.
The computer also has a collection of instruments in its storeroom.
You need to find all its instruments before it finds all yours.
When all of an instrument is found, an interesting fact about that instrument is displayed.
At present only string instruments are in the collections but more instruments will be added eventually.

How To Play

To begin playing, click on a square in the computer's instrument storeroom (the grid of squares on the left) to try to find one of its instruments.
If you find part of an instrument, the grid square will change to:
If you find nothing, the grid square will change to:
The computer will then try to find one of your instruments.
Then you have a turn.
Then the computer has a turn.
And so on...
When you or the computer find all the parts of an instrument,
the found instrument will be displayed in colour, such as:

Be careful, though. If the computer finds all your instruments before you find all of its instruments you won't be able to start the rehearsal!
(The computer does not cheat.)