Piezo triggered LED bar

Hi, too keep it short I'll describe what I want to do with the following:


I want the LED to be switched out to something like this:

To create something like this:

I'm thinking: Arduino Uno+Piezo - Relay+LED bar

Is this the right way to go about it? Any ideas?

Best regards,
Jacob

(deleted)

Do you happen to have an example of such a circuit?

You can use one or more piezos for input channels, or any other kind of microphones. A microphone amplifier may be required, and/or a frequency analyser, both readily available devices. Then it's up to you to map the sound levels or pulses to some visual effect, and steer the LED bar or stripes as appropriate. Also see "lighting console" or Clavilux.