PWM, LFO and Osc, adjustable with LCD Display the several POT values

AUDUINO seems quite cool and maybe something for later...But not exactly the thing i need. See, the schematic i use generates a highly adjustable siren type of sounds that goes from 2 tone, to siren, rapid bursts, phasor sounds, etc...
But i think i can definitely learn al ot from it though !
Thx