That looks pricey, but great. Thank you. I'm not sure if a double-page is necessary. I was thinking about using an old iPad in the meantime. I wonder if a m

That looks pricey, but great. Thank you. I'm not sure if a double-page is necessary. I was thinking about using an old iPad in the meantime. I wonder if a microphone could follow the music well enough to follow along -- detect mistakes or automatically change pages.