P A R A L L A X I S

About the Score ========

There is very little traditional rhythmic notation, instead the score adopts a "scrolling score" paradigm. The score appears from the right of the screen and scrolls in a leftwards direction. In the left half of the screen are the shaded areas called the playzones, in the center of these playzones is a vertical line representing the playhead, as the music passes over the playhead it is executed by the performer. Each of the parts plays back at a slightly different speed from the others causing the parts to constantly shift in and out of phase with one another.
Parallaxis uses a combination of graphical, and more traditional proportion style notation. There are three lines to the stave representing the registral areas low, middle and high. The size of the noteheads and thickness of lines represent dynamics - small note heads are played most quietly, larger noteheads are louder.



SCREEN SCORE / PROJECTION ========

No special software is needed to view the screen score for Parallaxix. It is written as a web app and runs in a web browser; for best results use Chromium, Google Chrome, Firefox orSafari. Avoid Internet Explorer if you use windows. The Score/s may be projected using a digital projector plugged into a laptop. These projections maybe visible to both musicians and audience. Optionally each member of the ensemble reads the score from a laptop placed on a music stand. This maybe preferable where unusual spatial arrangments of the musicians is prefered. The web based score is designed in such a way that everyone connected to that page will see the same thing - and that any controls touched on the directors laptop will controls the scores in front of all the musicians.

DURATION ========

Each of the parts is cyclical, looping constantly with the tail joining up with the head of the music seamlessly. This means the piece is of indeterminate duration, but given the amount of material presented in the score i would suggest between 8 and 14 minutes as an appropriate performance length. At the bottom left of the screen is a timer indicating how long has elapsed since the start of the piece - this is your reference for when to finish the performance For example the ensemble may decide collectively before a performance that after 8 minutes on performer stops holding a sustained note and each 20 seconds after that another performer also stops holding a sustained note. When all performers have stopped following the score and are sustaining a pitch they may graudually diminuendo to nothing and the piece is over.

SETTING THE INITIAL SPEEDS AND STARTING LOCATIONS ========


Each version can be made unique by setting new starting points for each of the instrumental parts, as the score can be seen as a loop there is no fixed starting point so new ones can be choosen for each performance. Also the speed relationships between the parts may also be changed. At the moment this involves changing the values in the parallaxis.js file. TODO - add this facility to the web interface.