guitar loop schematic

I'm building a pedal to offer multiple send/returns, triggered by switches. Does this layout look like it would work? I'm new to both arduino & fritzing, so unsure about colour coding, layout etc. I'm assuming the relays have a central input pin. Any thoughts welcomed.

When it works, I'm going to scale it up to 4 relays!

Dunno whether it works, not knowing what it should do :frowning:

Also the picture shows only how things look like, not what they are and do. AFAIR you can switch to circuit diagram view in Fritzing, and present that diagram.

What are the pale items on the left?
About the relays, what voltage and current do they need? What voltage and current supplied by the controller pins?