13

The preface to this work is a good summary what this piece is:

"This piece is a work that is difficult to classify. It could be conceived as a board game, an aleatoric
chamber piece, a performative piece, a musical, instrumental theatre or, to put it briefly, an
“Interwerk”. It should also be noted that this piece is an experimental work. It therefore allows the
performers more freedom than other compositions."

The piece is played by any number of musicians and accompanied by a gamemaster. 
The two main components of the piece are the game board and the music piece. Both are divided into four zones. In the case of the game board, the zones are also divided into 13 fields. 

Spielbrett 13_edited.jpg

The gamemaster moves the pieces around the board. Each piece is assigned to a musician. If a piece stands on a plattform it can trigger different actions, like:
playing at half tempo, reading staves from right to left, the figure changes zones, or the player must hop 13 times. 

Auch beeinflusst das Spielbrett die Musik, die gespielt wird. So wird je nach dem, in welcher Zone sich die Figur eines Spielers befindet, ein anderer Teil der Partitur gespielt.

To play, press and hold the enter key. To stop, release the enter key.

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The different zones in the score also have different topics. The first zone has the topic "melody", the second one "harmony", the third one "rhythm" and the fourth one "musicality". In the first two zones a free notation is used. In the third zone is the standart western notation used. The fourth zone is made up of boxes distributed throughout the score. The musicians has to choose which the individual framed musical snippets is played as a reaction to what is happening around them. 

Translated with www.DeepL.com/Translator (free version)

13 freie notation.PNG

The end of this work is determined by the position of the pieces or by the 13-cards. The game ends when all the pieces are on a 13-square or when all five 13-cards are turned over.
There are also interesting special rules like the yellow and red card. If a player picks up the yellow card, it cancels the current position or action. When a red card is picked up, one of the five 13-cards is turned over.