Maximum versatility meets real-time control... from your iPad!

The Tetra Midi Analog Performance Sequencer (TetraMAPS) vastly improves on the first 'MAPS' core design. Expect to use a sequencer that is more robust, versatile, and intuitive. Tetra MAPS gives you infinite virtual tracks, modulations and multiple, real-time versions of each sequence, over-lapping polyphonic step durations, four channels of CV output, Ethernet Open Sound Control and over 24,000 notes organized as:

• 16 Sets
• of 24 Bank Tracks
• of 8 Sequences
• of 8 Steps
• of 7 Parameters
• And Multiple Virtual Sequences
• Per-Step Note, Pitch, Velocity, Controller
• Per-Step Duration and Note Duration
• Per-Step Glide/Slew Rate
• Plus a Full-Featured Four Channel Polyphonic MIDI to CV Converter
• And Ethernet Open Sound Control (OSC) Communications

Real-time Interface
Real-time Flexibility

• Continuous turn "encoder" knobs and LCD display for instantaneous access to any parameter
• Displays step parameters using bar graphics, octaves, en-harmonics, or numbers
• Perform from the sequencer pressing the encoder knobs to trigger sequences or...
• Perform the sequencer remotely using MIDI or Ethernet OSC

Some of TETRA MAPS Version 3.1 Features

• OSC LAN Open Sound Control Networking
• Now communicate with OSC-enabled applications such as MAX/MSP, Lemur, iPhone/iPad TouchOSC
• More sequences - over 24,000 note capacity
• New Track View includes:
• volume - control sequence volumes like a sound mixer
• mute on/off individual sequence tracks
• single knob modulation of sequence tracks
• meta-link - easily links sequences into long tracks
• polyphonic MIDI record
• Sequence track and bank Stop and other short-cut key combinations
• Plus 4 Channels of Control Voltage Output
• Available in multiple rack formats

Sequence Step Matrix
Move beyond a simple MIDI Tracker

• Real-time sequence step modes:
note, scale, detune, velocity, controller, step duration, note duration, slew rate
• Force step note to one of 50 musical scales
• Step notes are tuneable to 1/64th semitone 'un-quantized' resolution
• Sequences output MIDI controller numbers 0 to 99
• Per-step glide or slew rate for MIDI pitch-bend slew or portamento output
• Sequence Loop and Link for long patterns up to 1536 steps
and multiple instances thereof
• Sequencer cross-modulation:
A sequence may modulate another sequence's pitch, velocity, controller and event times Modulation routes by channel allow additive, global and recursive sequence modulation
• Random step advance and pendulum modes
• Per-bank and global BPM tempos
• 32 channel MIDI output
• Control Voltage modulation input for sequence transposition, velocity or step time

Variable Event Times and Durations
Move beyond the traditional Analog Sequencer

• Per-step step and note durations:
Note off and step skip to 64th to dotted whole note durations
• Ability to create polyphonic sequences with any combination of chord and single note
• Sync triggers to beat or free-time, independent to each sequence
• Bar Sync syncs sequence loop to bar length, independent to each sequence
• Poly-rhythms are easily generated with Bar Sync
• Step fractional time-shift modulation via sequence modulator or CV input
• Programable external clock sources and timing resolution

Dynamic Sequence Triggering
Makes this the Performance Sequencer

• Concurrent triggering of each bank group of 8 sequences,
with multiple virtual sequence iterations
• Additive or global sequence modulation
• Recursive sequence modulation
• Sequencer trigger sources:
Sequences are panel key assignable and MIDI channel or note assignable. Sequence iterations track MIDI trigger note, velocity, note duration, and note instances
• Triggers sync to beat or free-time; create MIDI echo
• Sequencer trigger modes:

Multiple                 sequences follow all trigger instances
Single                   sequence follows monophonic trigger
Duration Follow      sequence note duration follows trigger duration
Loop Hold             sequence loops while trigger is held
Run/Stop               trigger play; trigger stop
Seq Reset             trigger play; trigger reset sequence
Release                trigger sequence_n; sequence_n+1 on trigger release
Step Play              trigger plays the next successive step
Step Record           trigger sets step value
Step Randomize     trigger sets random step values

Polyphonic MIDI to Control Voltage Converter Features (MCV)
Superb Analog Voice Control

• 4 channels of full-featured MIDI to Control Voltage conversion
• Authentic mono synth emulation with 8 finger note buffer
• Configurable output ports
• 5 octave linear note range
• Volts/Octave or Volts/Hertz output scaling
• Low / High / Last note priority
• Re-trigger and Recycle note modes
• Linear or Exponential portamento slew
• Mono and polyphonic pitch bend modes with variable pitch bend width
• Velocity and MIDI controller support with 16 curve modifiers, inversion and scaling
• Three programmable MIDI input channel zones

Other Analog Ports
Flexible Analog or MIDI Sync

• Analog Clock in at 4ppq and 24ppq
• Analog Clock out at 2ppq, 4ppq and 24ppq
• MIDI clock in and out at 24ppq
• External CV input for sequence modulation

File Data Exchange

• MIDI file dump data
• Flash upgradeable OS

Specifications: Input / Output

Control Voltage                              4 CV out, 4 Gates out, 1 CV in
MIDI                                               in, out 1, out 2 or through
Ethernet                                         Open Sound Control (OSC) / MIDI over ethernet support
Analog Clock Sync                          in (TRS ring) and out (TRS tip) / Drum Sync 24
External Foot Pedal                         input (TRS tip doubles for CV in)
Power                                            9VDC @ 300mA
Graphic Display                               2 X 20 character lit LCD
Dimensions                                     Euro-rack 5.1 X 8.5 X 3 inches

Tetra MAPS Sequencer User's Manual

Rev 3.1 Manual

Original MAPS Sequencer Revision 2 User's Manual

Rev C2.2 Manual

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