Principessa: Vintage Organ Kontakt Instrument by Soundiron

Soundiron describes the organ's tone as rich and analogue, with a warm low end and smooth highs. The interface gives you control over volume, attack, release, transient offset, vibrato and octave layering. The Glide slider switches between monophonic legato and standard polyphonic playback, and the Octave knob adds a lower and higher doubling for more body.

An adaptable LFO system lets you choose the shape, modulation target, speed, intensity, tempo sync and fade-in time. Thirteen filter types, including lowpass, highpass and FX filters, can be assigned to modulation sources such as velocity, mod wheel, expression, aftertouch, key position and a step-sequencer table.

The library includes 20 sound-designed FX and ambient presets. Its effects rack combines EQ, filter, phaser, flanger, delay, distortion and amp and speaker simulation. A convolution reverb offers 119 impulses, including cathedrals, churches, halls, rooms, tunnels and more unusual effect spaces.

The built-in arpeggiator has a velocity sequencer table and controls for direction, note timing, swing, randomization and duration, which makes it useful for pulsing organ patterns.