AIR Music Technology Bassline (ESD); virtual synthesizer plugin; uses vacuum tube synthesis for analog-style sound; one main oscillator with continuously variable waveform morphing (octave saw, saw, square, sine); additional sub and fifth oscillators; multiple filters and envelopes; built-in effects: chorus, delay, reverb, compressor, EQ, two distortion types; over 150 presets (pads, plucks, basses, leads)