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Sequential_Circuits Fugue


Released: 1981



Rebadged Siel Cruise, combining the functionality of the Siel Mono and Orchestra/Prelude Architecture Class: Conventional (subtractive).

Ebay Description:

The Sequential Circuits Fugue (rebadged SIEL Cruise) is a 49 key, analog ensemble synthesizer, featuring Brass, Piano, Reed, and String sections (with vibrato), along with a programmable monophonic synthesizer. The Brass and Piano/Reed sections have a variable attack, while the string section has a variable release. The Brass section also has "brilliance" control. The monosynth section features an oscillator (with sub), filter, envelope, and LFO.


Form Factor Dimensions Weight Audio Input Audio Output Communication Port Control Input Control Output Switch Input Power
49 keys ? ? no mono poly no Volume pedal (5 pin DIN) no Sustain pedal Split point pedal wired


Compatibility Multitimbral Memory Program Memory External Storage External Programming UI Input UI Output
N/A no 10+4 presets no no buttons/sliders LED


Multitimbral Polyphony Unison Architecture
5 1+full (divide down osc) no VCO->VCF->VCA DCO+Sub->VCF->DCA


Effects Pan Modulator Volume Modulator Headphone
none no EGs pedal:(5-pin-DIN) no


Arpeggiator Arpeggiator External Sequencer Sequencer Memory Sequencer External Continuous Program Change
no no no N/A no Pitch-Stick no


Key Pressure Chord Memory External Control External Sustain Key Scaling Velocity Curves
no no no pedal yes no


Name Signal Class Waveform Octave Range Amplitude Modulator Harmonics Modulator Pitch Modulator Wave Assign Modulator
Brass analog saw? - no no no
Piano analog pulse? - no no no
Reed analog square? - no no no
String analog saw? - no no no
DCO digital saw pulse square impulse saw: 32' 16' 8' pulse: 16' 8' square: 16' 8' 4' impulse: 8' 4' (harmonics mix) +1 octave no no LFO portamento
Noise digital noise:pink - no no no


Name Signal Class IC Resonant Shape Frequency Modulator Resonance Modulator Shape Modulator
BrassBrilliance analog opamps no band pass? no no
VCF analog opamps yes band low high EG key LFO no


Name Level Rate Loop Polarity Trigger Level Modulator Rate Modulator
BrassEG - attack no no no no no
PianoReedEG - attack no no no no no
StringEG - release no no no no no
EG sustain attack decay release no no no no no


Name Waveform Delay Polarity Sync Delay Modulator Level Modulator Rate Modulator
LFO triangle no no no no no
LFO triangle yes no no no no
Conventional Models
Prophet 5 Prophet 10 Pro-One Prophet 600 Prophet T8 Fugue Prelude Velocity 6
Six-Trak Max Multi-Trak Split-Eight Prophet VS Prophet VS Rack