Christmas Belly models a set of wind chimes.

There are 2 main sections to the Belly: the sound generator on the right hand side, and the strike section on the left.

The sounds are made with a simple FM synthesiser for the resonators (e.g. bells), a random wind sound generator and a ringing filter for the striker sound.

The wind intensity can influence the randomness of the strikes, so that stronger gusts and levels will increase the chance of a strike.

All 3 sound sources can be mixed as desired and the bells can be made to sound more or less “distant” by controlling the level of ambience.

You can have up to 8 bells, individually tuneable and selectable. Once a scale has been set the whole can be shifted up or down by 1 octave in semitones. The scaling can be stretched positive or compressed negatively to give a varying degree of mistuning and scale dissonance.

The Belly has a MIDI input so you can play it as a full instrument, with no restrictions from the striker section.

There are 2 mixable sources for the striking: Wind and Ringers. The Wind adjusts the influence (chance) of a bell striking according to wind amount.