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Buchla | Easel-K
|This is an updated configuration of the faithful reproduction of the 1973 Buchla Music Easel. The 218 Touch Activated Voltage Source has been swapped out for the 223e Multi-Dimensional Kinisthetic Input Port/Tactile Input Port.
This controller is the paragon of tactile interfacing with electronic instruments and allows for significant flexibility of control. Its 25 touch pads sensitive to various parameters (pressure, impact, and location) can be programmed to combination of the 19 voltage outputs and 9 trigger outputs.
This customization of control combined with the powerful arpeggiator allow for nearly limitless combinations of control of the many voltage controllable parameters of the 208 Stored Program Sound Source.
The 223e comprises two components: A 3-panel-unit tactile surface (the Multi-Dimensional Kinesthetic Input) for generating user control data, and the single-panel Tactile Input Port module, which provides edit / programming control for the tactile surface, and houses the control voltage outputs and the controls for the built-in arpeggiator.
The tactile surface features an ergonomic array of 27 velocity- and pressure-sensing keypads, fourteen of which respond to location in one or two dimensions. Pressure sensitivity ranges from feather-weight to several pounds. Arranged into multiple user-defined groups ranging in size from 1 to 25, the keypads can produce a wide array of user-programmed control voltages. The surface can be mounted in three panel spaces in a 200e-series cabinet (usually in the lowest boat, for playing convenience), or independently mounted in a 201e-3 Passive Frame.
Location, pressure, impact, and tuned voltages, as well as pulses generated by the tactile surface are presented at a total of 30 outputs on the Tactile Input Port module.
The arpeggiator features multiple patterns, internal and external clocks, and a variety of additional features. All settings, including Tactile Input keypad programming, can be saved and recalled by the Preset Manager on the 225e or 206e module.
|LFO||1 Sample & Hold, Triangle|
|Engine Detailed||2 VCO Pulse, Pulse Variable, Square, Triangle|
|Filter (VCF)||1 24dB Slope (4-pole), Resonance|
|Envelope (VCA)||1 Attack, Decay, Looping, Triggered|
|Key type||Touch pads|
|Legend:||Obvious||Y: Yes, N: No, N/A: Not Applicable|
|VCO||Voltage Controlled Oscillator||DCO||Digital Controlled Oscillator|
|LFO||Low Frequency Oscillator||Sub||Sub Oscillator|
|VCF||Voltage Controlled Filter||VCA||Voltage Controlled Amplifier|
|Velocity||As with a piano, the harder you hit a key, the louder the sound, unlike most organs which always produce the same loudness no matter how hard you hit a key.||Aftertouch||Pressing a key after you activated it. Channel Aftertouch, no matter which key, it will send a Channel message. Poly Aftertouch, sends the pressure per key instead of the whole channel.|
|Values for OSC, LFO, Filter, Envelope are per voice unless stated otherwise.|