What cable to buy for power + peripheral (digital piano) at the same time?

[Saint.Million]

I want to plug my digital piano into my phone via USB C, but I also want to provide power via usb C at the same time.

Which cable/adapter should I buy?

 

[Rroff]

You might need to research this on a phone by phone basis as what actually works vs what in theory might work can be different with different phones, USB-C alleviates some of that compared to the situation with micro USB/OTG but it is still far from straight forward.

 

[Saint.Million]

nvm