Phoscyon is an emulation of the Roland TB303, brought up to date with lots of additional features.

Features:

• 2 authentically emulated analog oscillators (saw/square).
• "Screaming" 18db/oct low pass filter with absolutely no self oscillation.
• Filters equipped with transistor amplitude clipping.
• Perfectly scaled knob ranges.
• Additional synthesis controls expand the synthesizer's range.
• Built-in arpeggiator:
  • 7 predefined chords and 1 user definable chord.
  • Arpeggiator tempo multiplier (1, 1.5, 2, 3, 4, 6).
  • Arpeggiator repeat feature.
  • 4 arpeggiation patterns (Up, Down, Up-Down, Random).
  • Defined offsets of octaves to work with.
• Built-in distortion effect (equivalent to a transistor amplifier with equalization):
  • Tailored for the Acid Bassline sound.
  • Equipped with signal routing (Dist <=> Eq).
• Several Programming options:
  • Internal sequencer (128 patterns, each pattern up to 16 steps, each step defined with Note, Gate, Accent, and Slide values).
  • External mode (compromise).
  • Play Live mode.
• Powerful randomizer:
  • Generates patterns from user defined range of notes, user defined chords or predefined chords (Major, Minor, 7th, m7th, M7, m7-5, DIM).
  • Generates random values for Note, Gate, Accent, and Slide attributes.
  • Allows user to define attribute frequency.
• Fully controllable via MIDI CC.
• Precise synchronization with host sequencer.