If you want to use digital sheet music instead of paper, Steinway’s free iPad app provides a good solution.
Steinway Etude
But, what if you don’t want to take your hands off of the piano (or other instrument) to flip the virtual sheet music page? Well, the Etude app update adds support for a Bluetooth page turning foot pedal.
Read documents and control your computer or tablet hands free. The AirTurn BT-105 is a versitile, wireless page turner for reading sheet music or any other digital document* on your Bluetooth equipped computer hands free. The BT-105 can connect to one or two footswitches for forwards and backwards page turns. The BT-105 is available with the ATFS-2 pedals, featuring proprietary “mechanism-free” switching technology designed to be the most silent foot switches in the consumer market.
The BT-105 with 2 ATFS-2 Pedals and Pedal Board is priced at $129.95.