Let the Sun guide you
For Beginner Bleeps Kit
I have bought several of these kits and you really got endless possibilities using ldr's or pots.
I got one pcb where i replaced all the Mix diodes with ldr's, it's fun the hear the reaction in different light sources, it is totally different from full sunlight to shadowy enviroment even led's sound different from eachother, try and connect one big led from a flashlight to a pcb from twinkeling christmass lights with different programs of flashing and you will have a Blast!