BLEASS Alpha Synthesizer is a virtual analog polyphonic stereo synthesizer inspired by classic analog synths and enhanced by the BLEASS’ very own musical and technical approach.

The Alpha is a highly versatile Synthesizer that aims at bringing new ways of designing and playing an infinite constellation of sounds while sparkling creativity.


              • SIMPLE & INTUITIVE INTERFACE: follow the direction of the audio signal : design your own synth sounds by tweaking each panel, from left to right.
              • VISUALISE YOUR SOUND: thanks to its user-friendly visual filters, sliders, LFOs and envelopes, quickly understand how to design your own presets.
              • LOW CPU USAGE: Load multiple instances of BLEASS Alpha seamlessly.
              • A UNIQUE MOTION SEQUENCER inspired by modular synthesizers brings a new dimension to your pads, leads and sequences by offering a large amount of rhythmic and expressive modulation possibilities, which can be coupled with the arpeggiator.
              • MPE COMPATIBILITY for more expressivity.
              • HUGE SONIC POSSIBILITIES: Stereo oscillators, 5 different built-in effects, multiple modulation targets, 200+ factory presets and templates for sound design…


  • Built-in arpeggiator with beat sync
  • MPE Compatible: Timbre & Pressure parameters
  • Assignable modulations targets for the Modwheel
  • Vibrato parameters : speed & amount
  • Master Detune parameter
  • Unison settings multiplying oscillators per voice


  • 2 stereo + 1 mono fine-tunable oscillators with variable waveshapes & pulse widths
  • Cross & ring modulation between oscillators
  • Phase control on stereo oscillators for wide stereo
  • Hard sync
  • ADSR
  • 1 noise source


  • 2 variable state filters with drive settings
  • 4 Filters shapes: Low Pass / High Pass / Band Pass / Notch
  • Filter Envelope


  • 2 LFOs per voice with multiple waveforms & multiple modulation targets
  • Envelope ADSR with assignable modulation targets
  • modulation destinations : Volume, Pan, Pitch, Osc3Level, Vibrato Amount, LFOs, Cutoff, Res., OscMix, OscXMod, RingLevel, OscPW, OscWave, OscPitch


  • Versatile rhythmic & expressive modulation possibilities
  • Intuitive motion sequencer with Snap mode & Randomness
  • 2 different modulation targets & modulation amount
  • Sequence Length & Beat Resolution
  • Trig Or Beat Mode : in Trig mode, the sequencer move forward at each new note – in Beat Mode the sequencer is sync to the beat
  • Global/Notes Dispatch : in Global mode, the sequencer modulation will affect all the voices of the synth. In Notes mode, only the last note will be affected by the modulation.
  • Arp Reset : (Trig Mode only) the Sequencer will restart when the Arpeggiator triggers its first note.


  • Overdrive
  • Bitcrusher
  • Tremolo
  • Delay with filter and ping-pong effect
  • Reverb with length, filter and color control


  • Over 200+ Factory presets (including presets designed by Jordan Rudess / Electronisounds / Mark Lion / Nu-Trix / the Beat Community / the BLEASS Team)
  • 500+ more unlockable presets (presets by Lily Jordy / Red Sky Lullaby / Sound Of Izrael / The Garageband Guide / Torley / Yawdel / the BLEASS Team)
  • Advanced presets management: import / export multiple presets, assign category, rename, edit. Presets are compatible with the iOS version.
  • Presets Generator (dice)


Available for iOS