A new update on the max msp version of the delta system has allowed for exciting features to be musically explored including multi-variable control, poly-microtonal modulation, a matrix harmonizer, and an interval sequence iterator.
The multi-variable control allows a musician to play at various intervallic levels with multiple keyboards to control either one pitch variable or multiple pitch variables. Each keyboard functions as a separate voice which can be manipulated with higher orders of intervallic command.
Poly-microtonal modulation allows for the two variables, controlled by separate keyboards, to operate in multiple tuning systems simultaneously. For example, one can be playing interval sequences in the left hand keyboard from 24tet and interval sequences in the right hand keyboard in 12tet. Of course, any two tuning system combinations can be used, ranging from 1 to 88TET, when in equal tempered mode.
The matrix harmonizer transposed any pitches played on each keyboard (both of which can operate with independent tuning systems) by the intervallic distance of the pitch transformation on the opposing keyboard. This can create very harmonically compex chord structures and can allow for an effect similar to Michael Brecker’s EWI harmonizers (which is done with a single chord) but with the ability to transform the chord type being transposed in real-time.
Finally, the interval iterator takes the intervallic structure of a collection of pitches played in one variable control keyboard and then repeats that interval sequence up or down by a certain number of iterations as defined by the second variable control keyboard,
There are more functions to be added, and videos are soon to follow chronicling the systematic exploration of multi-tempered intervallic space.