The tag 'midi led strip volca beat' is only used once. This is the project:
3 Volts to 5 Volts DC-DC Converter
Boosts 2 AA's into 5 volts
DC to DC converter using MAX756 IC, 2 100uf capacitors, 2 1uf capacitors, 1 22uH inductor, and 1 1N5817 Diode. Approximate Total Cost: $10