Hi! I recently purchased my first player piano and I just wanted to know some of the basic rules for handling them. While a roll is playing, can someone still play simultaneously without disturbing the pianola? Can I stop the piano in the middle of a note (in order to study which notes are played in that moment) by turning the speed down to zero, or is this bad for the instrument? Finally, how do I repair and load a roll that has been torn? Any sites (other than this one) I can go to in order to learn more? Thanks for taking the time to read this. I hope you can help!