Stop Time, the first composition to use the physical version of the Hayward Tuning Vine as a score, was performed in Ghent on 24.09.14
http://www.debijloke.be/concerts/bijloke-manufactuur-3
http://www.robinhayward.de/eng/comp/stoptime2013.php

The Hayward Tuning Vine may be used

- as a pedagogical tool, for learning about and exploring Just Intonation;

- for performing music in Just Intonation;

- as an interface for composing and improvising in Just Intonation.

It is a Just Intonation alternative to the piano keyboard.

When using the shift arrows, placed left and right of the number boxes, I find it helpful to imagine harmonic space moving through the tuning vine. The vine itself stays static, but the pitches of the nodes reflect the shifts that have taken place.

The shift feature allows the user virtually unlimited exploration of Just Intonation up to prime number 23, whilst enabling pitches to be simultaneously sounded between 20 and 20 000 Hz. 

NB the 'shift' arrows were originally referred to as 'transposition' arrows. This proved confusing as it implied that the pitches were thereby transposed up and down, whereas only their position within the lattice is changed. 'Shift' reflects this changing position without implying that any change in the sounds themselves.

We've been asked if we can include a 'save' option in future versions. Presets will allow the user to save and recall specific patches, rather than having to screenshot them and build them up again from scratch. This is high on our list of priorities for v2.0.