For PhotoReading no entrainment is required.
Play with brainwave entrainment at other times to learn to let go and just do. Entrainment takes your brainwaves to a more relaxed inner focused state because eyes are closed. With eyes open you will produce more beta brainwaves unless you defocus them and start daydreaming.
When you learn to let go and just do it. Then anything you wish to learn becomes easier to learn.
It's our negative self-talk that holds us back. Not our brainwaves.
Alex