I'm having problems and any help is appreciated. Here is what I did
1) Write the image to the SD Card and insert it into Pi Zero.
2) Attach powered hub to Pi Zero.
3) Attach midi keyboard, USB stick with samples, usb audio interface, and keyboard/mouse to hub.
4) Attach HDMI out to monitor
5) Attach power to Pi Zero
Pi Zero LED alternates between solid and blinking, no HDMI output is present