...shown

Some comments on these studies can be found in [2].

...moment

One should not mix posture with a simple still picture of a gesture.The notion of posture takes into account the forces used to keep the hand still

...vibration.

breath pressure also controls amplitude vibrato, therefore can be considered as having a certain amount of parametric modulation gesture properties.

...vibrato).

embouchure defines the excursion of the output resulting loudness. It will control frequency vibrato and also timbral/amplitude changes.

...(note).

Fingering affects the pitch in a discrete way, in the case when one considers the note variations on a clarinet as discrete steps. But it is well known for clarinet players that glissandi can be produced by partially opening the holes. We can then consider these gestures also as modulation gestures, apart from their role as selection gestures.

...performance).

Other gestures, such as the tongue attacks, positioning of the lips related to the reed, partial opening of holes are not sensed in a normal controller (and are generally difficult to be captured in a direct way [12]).

...transposition.

In figure 1.2, the amount of black colour reveals the adaptability of a particular transducer to perform a musical function and the kind of feedback provided. Physical variables are considered as absolute or relative (r) and distance is displayed as growing from left to right (infinite). In the case of isotonic force transducers, motion is needed to operate the sensor. Isometric ones do not need motion.

...timbre).

In the case of a clarinet, these gestures act in interdependent ways, as shown above.

...gesture.

One may then take into account the role of the gesture and the interface design constraints in different contexts, i.e., a beginner's or an expert system design orientation. (See [14] for some discussion on designing hyperinstruments to non expert players. Also the role of mapping in different performer contexts is discussed briefly in [3].

...functions

as defined in [15]

...Escher

Synthesis environment in FTS intended as a toll for testing different interaction strategies[16]: ``abstract parameters'';

...etc.);

check out [9].

Wed Feb 10 10:07:20 MET 1999